Article
Astronomy & Astrophysics
Jenifer S. Millard, Benedikt Diemer, Stephen A. Eales, Haley L. Gomez, Rosemary Beeston, Matthew W. L. Smith
Summary: Investigating galactic dust mass evolution through empirical methods and cosmological simulations reveals discrepancies between observed evolution and model predictions, possibly due to cosmic evolution in dust grain properties or limitations in the model, particularly in relation to the fast evolution of neutral gas content in galaxies in the simulation.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
P. Dayal, A. Ferrara, L. Sommovigo, R. Bouwens, P. A. Oesch, R. Smit, V Gonzalez, S. Schouws, M. Stefanon, C. Kobayashi, J. Bremer, H. S. B. Algera, M. Aravena, R. A. A. Bowler, E. da Cunha, Y. Fudamoto, L. Graziani, J. Hodge, H. Inami, I De Looze, A. Pallottini, D. Riechers, R. Schneider, D. Stark, R. Endsley
Summary: This article presents the inclusion of metal and dust enrichment into a semi-analytic model of galaxy formation to explain the dust content of 13 LBGs detected at z similar or equal to 7. The study finds that the dust mass in galaxies is influenced by Type II supernova dust production, astration, shock destruction, and ejection in outflows, while grain growth plays a minor role. The model predicts a dust-to-stellar mass ratio and a UV-to-total star formation rate relation that align with observations. However, there are two systems that show significantly higher dust-to-stellar mass ratios, suggesting alternative solutions are needed.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Dian P. Triani, Darren J. Croton, Manodeep Sinha, Edward N. Taylor, Camilla Pacifici, Eli Dwek
Summary: We developed a pipeline called mentari to generate the spectral energy distribution (SED) of galaxies across a wide wavelength range using the Dusty SAGE model. By incorporating dust-related processes, our physically motivated attenuation model provides a more consistent description of galaxy formation and evolution than a constant attenuation. Our predictions agree reasonably well with observations in terms of the luminosity functions and cosmic SED, although our model underproduces far-ultraviolet emission at higher redshifts, indicating the need for further improvements in AGN feedback and dust processes.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
L. Dunne, S. J. Maddox, P. P. Papadopoulos, R. J. Ivison, H. L. Gomez
Summary: This study presents a self-consistent cross-calibration of three main molecular gas mass tracers in galaxies using a Bayesian statistical method, indicating that near-universal average values are adequate for global molecular gas estimates within the expected uncertainties for metal-rich galaxies.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Ryan Chown, Laura Parker, Christine D. Wilson, Toby Brown, Fraser Evans, Yang Gao, Ho Seong Hwang, Lihwai Lin, Amelie Saintonge, Mark Sargent, Matthew Smith, Ting Xiao
Summary: This study investigates the cold gas and dust properties of a type of red star-forming galaxies called 'red misfits'. The research compares these properties with blue star-forming galaxies, taking into account non-detections. The results show that red misfits have longer molecular gas depletion times, lower gas mass fractions, lower dust-to-stellar mass ratios, and a flatter slope in the log M-mol-log M-star plane, suggesting they are likely quenching due to a shortage in gas supply.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Hiroyuki Hirashita, I-Da Chiang
Summary: We investigate the physical reasons for high-dust temperatures observed in some high-redshift galaxies using analytic models. We find that low dust-to-gas ratios and enhanced star formation could explain the high temperatures.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Valentin Mauerhofer, Pratika Dayal
Summary: Recent observations with the JWST have provided tantalizing hints of early massive, bright galaxies at z > 10, with significant dust masses as early as z similar to 7. Using the delphi semi-analytic model, this study tracks the assembly of dark matter haloes and baryons, including the process of dust enrichment. The results show the underprediction of the observed ultraviolet luminosity function at high redshifts and provide insights into the relationship between dust mass, stellar mass, and redshift.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Yung Ying Chen, Hiroyuki Hirashita, Wei-Hao Wang, Naomasa Nakai
Summary: Some studies indicate high dust temperatures in high-redshift LBGs, but there is an observational bias yet to be understood. ALMA tends to miss high-T-d objects, even at high total dust luminosity, and the bias related to dust temperatures in UV-selected LBG samples is complex. There is no tendency of high-T-d LBGs being more easily detected in ALMA Band 6.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Piyush Sharda, Anish M. Amarsi, Kathryn Grasha, Mark R. Krumholz, David Yong, Gen Chiaki, Arpita Roy, Thomas Nordlander
Summary: According to star formation models, the metal-poor initial mass function (IMF) may differ significantly in metal-poor gas clouds, leading to variations in the characteristic mass of IMF with metallicity. Some observational data suggest that the ratios of C and O elements in metal-poor systems do not follow solar scaling, which could have a significant impact on IMF and the star formation process.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Yuping Tang, Q. Daniel Wang, Grant W. Wilson
Summary: Through a Bayesian modeling and joint spectral energy distribution analysis, this study investigates the dust properties in the Central Molecular Zone of our Galaxy, revealing an increasing trend of dust spectral index beta towards dense peaks. This environmental dependence of beta could have significant implications for the determination of dust temperature in other studies.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
A. D. P. Howard, A. P. Whitworth, M. J. Griffin, K. A. Marsh, M. W. L. Smith
Summary: The PPMAP algorithm reanalyzed observations of the L1688 and L1689 subregions of the Ophiuchus molecular cloud, delivering high-resolution maps and more accurate dust optical depths. Most filaments and pre-stellar cores are located in regions with high N-H2 values, with some exceptions influenced by feedback from nearby stars. The study suggests that most starless cores are likely to disperse instead of evolving into pre-stellar cores.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Qi Li, Desika Narayanan, Paul Torrey, Romeel Dave, Mark Vogelsberger
Summary: This study develops a cosmological model to understand the evolution of dust grains in galaxies and the origin of dust extinction curves in the Milky Way. The research reveals that the slopes and bump strengths of dust in galaxies differ depending on the growth rates and graphite-to-silicate ratio evolution, with the Milky Way showing unique characteristics.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Y. Pouteau, F. Motte, T. Nony, R. Galvan-Madrid, A. Men'shchikov, S. Bontemps, J. -F. Robitaille, F. Louvet, A. Ginsburg, F. Herpin, A. Lopez-Sepulcre, P. Dell'Ova, A. Gusdorf, P. Sanhueza, A. M. Stutz, N. Brouillet, B. Thomasson, M. Armante, T. Baug, M. Bonfand, G. Busquet, T. Csengeri, N. Cunningham, M. Fernandez-Lopez, H. -L. Liu, F. Olguin, A. P. M. Towner, J. Bally, J. Braine, L. Bronfman, I. Joncour, M. Gonzalez, P. Hennebelle, X. Lu, K. M. Menten, E. Moraux, K. Tatematsu, D. Walker, A. P. Whitworth
Summary: This study observed the W43-MM2&MM3 mini-starburst ridge and found that the high-mass end of its core mass function (CMF) is different from the canonical initial mass function (IMF), showing a top-heavy feature. The results challenge the universality of the IMF and suggest the need for more robust functions to predict the IMF.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
Y. Pouteau, F. Motte, T. Nony, M. Gonzalez, I. Joncour, J. -F. Robitaille, G. Busquet, R. Galvan-Madrid, A. Gusdorf, P. Hennebelle, A. Ginsburg, T. Csengeri, P. Sanhueza, P. Dell'Ova, A. M. Stutz, A. P. M. Towner, N. Cunningham, F. Louvet, A. Men'shchikov, M. Fernandez-Lopez, N. Schneider, M. Armante, J. Bally, T. Baug, M. Bonfand, S. Bontemps, L. Bronfman, N. Brouillet, D. Diaz-Gonzalez, F. Herpin, B. Lefloch, H-L Liu, X. Lu, F. Nakamura, Q. Nguyen Luong, F. Olguin, K. Tatematsu, M. Valeille-Manet
Summary: This study investigates the impact of environment on the shape of the core mass function (CMF) and explores variations in the core distributions with cloud characteristics. The research focuses on the W43-MM2&MM3 mini-starburst and finds that its CMF deviates from the Salpeter slope. The findings suggest a connection between the cloud structure and the high-mass end of the CMF.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
Hongwei Xi, Lister Staveley-Smith, Bi-Qing For, Wolfram Freudling, Martin Zwaan, Laura Hoppmann, Fu-Heng Liang, Bo Peng
Summary: The Arecibo Ultra-Deep Survey (AUDS) used ALFA imaging to detect more galaxies at a larger redshift depth, detecting 247 galaxies and constructing an HIMF. The study found an increase in characteristic mass of the HIMF in different redshift bins, but no significant change in the low-mass slope.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
U. Sureshkumar, A. Durkalec, A. Pollo, M. Bilicki, M. E. Cluver, S. Bellstedt, D. J. Farrow, J. Loveday, E. N. Taylor, J. Bland-Hawthorn
Summary: Investigated the correlation between mid-infrared properties of galaxies and their environment, finding that galaxy clustering is dependent on absolute magnitude and redshift. Also observed a correlation between mid-IR luminosities and environmental properties of galaxies. Explored how different IR galaxy luminosity selections influence clustering measurements.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
Scott A. Tompkins, Simon P. Driver, Aaron S. G. Robotham, Rogier A. Windhorst, Claudia del P. Lagos, T. Vernstrom, Andrew M. Hopkins
Summary: We present a revised measurement of the extragalactic background light (EBL) at radio frequencies based on a near complete compendium of radio source counts. We report the radio-EBL at multiple frequencies, each showing a two-humped distribution that matches well with active galactic nucleus (AGN) and star-forming galaxy (SFG) populations, with both populations contributing roughly equal energy.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Cristina Martinez-Lombilla, Sarah Brough, Mireia Montes, Roberto Baena-Galle, Mohammad Akhlaghi, Raul Infante-Sainz, Simon P. Driver, Benne W. Holwerda, Kevin A. Pimbblet, Aaron S. G. Robotham
Summary: We conducted a pilot study using Hyper Suprime-Cam Public Data Release 2 (HSC-PDR2) images to analyze extended faint structures in groups of galaxies. By analyzing the intragroup light (IGL) in group 400138 from the GAMA survey, we measured the most extended IGL to date reaching a semimajor axis of 275 kpc. The IGL showed younger stellar populations and lower metal richness compared to the host group galaxies, suggesting tidal stripping as the main driver of IGL buildup.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Rosalia O'Brien, Timothy Carleton, Rogier A. Windhorst, Rolf A. Jansen, Delondrae Carter, Scott Tompkins, Sarah Caddy, Seth H. Cohen, Haley Abate, Richard G. Arendt, Jessica Berkheimer, Annalisa Calamida, Stefano Casertano, Simon P. Driver, Connor Gelb, Zak Goisman, Norman Grogin, Daniel Henningsen, Isabela Huckabee, Scott J. Kenyon, Anton M. Koekemoer, Darby Kramer, John Mackenty, Aaron Robotham, Steven Sherman
Summary: The HST Archival Legacy program SKYSURF aims to measure the sky surface brightness (sky-SB) from HST images and has achieved consistent results and revealed a possible dependence on the Sun angle. Furthermore, these measurements provide the most stringent all-sky constraints to date in the near-infrared diffuse light.
ASTRONOMICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
William C. C. Keel, Rogier A. A. Windhorst, Rolf A. A. Jansen, Seth H. H. Cohen, Jake Summers, Benne Holwerda, Sarah T. T. Bradford, Clayton D. D. Robertson, Giovanni Ferrami, Stuart Wyithe, Haojing Yan, Christopher J. J. Conselice, Simon P. P. Driver, Aaron Robotham, Norman A. A. Grogin, Christopher N. A. Willmer, Anton M. M. Koekemoer, Brenda L. L. Frye, Nimish P. P. Hathi, Russell E. E. Ryan Jr, Nor Pirzkal, Madeline A. A. Marshall, Dan Coe, Jose M. M. Diego, Thomas J. J. Broadhurst, Michael J. J. Rutkowski, Lifan Wang, S. P. Willner, Andreea Petric, Cheng Cheng, Adi Zitrin
Summary: We measured the spatial and wavelength behavior of dust attenuation in the multiple-armed spiral galaxy VV 191b using backlighting by the superimposed elliptical system VV 191a. The imaging data revealed the attenuation profiles and coverage statistics in different wavelength bands, showing a stronger reddening behavior and a power-law extinction behavior with different slopes at different wavelengths. These results indicate a different grain population compared to our vicinity.
ASTRONOMICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
Joss Bland-Hawthorn, Thor Tepper-Garcia, Oscar Agertz, Ken Freeman
Summary: Recent observations have found a negative correlation between baryon surface density and dark matter fraction in high-redshift galactic disks. This implies that early massive galaxies are dominated by baryons over dark matter, similar to the Milky Way. Stellar bars are shown to form quickly in these disks at early times, leading to a high bar fraction as observed by the James Webb Space Telescope. The formation time of these bars depends on the disk mass fraction, with a faster formation time for higher disk fractions.
ASTROPHYSICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
Caroline Foster, Sam Vaughan, Amelia Fraser-McKelvie, Sarah Brough, Julia J. Bryant, Scott M. Croom, Francesco D'Eugenio, Brent Groves, Iraklis S. Konstantopoulos, Angel R. Lopez-Sanchez, Sree Oh, Matt S. Owers, Sarah M. Sweet, Jesse van de Sande, Emily Wisnioski, Sukyoung K. Yi, Henry R. M. Zovaro
Summary: We examine the differences in dynamics between ionized gas and stars in galaxies. Local velocities and dispersion of gas and stars agree better in younger systems, suggesting initial coupling. The scatter in velocity and dispersion relations increases with stellar age and mass, indicating the role of subsequent mechanisms. Older galaxies have hotter global dynamical support and ionized gas is generally colder than stars. The local difference in velocity dispersion is more pronounced than the local difference in velocity, possibly due to turbulence, inflow, and feedback.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Pankaj C. Bhambhani, Ivan K. Baldry, Sarah Brough, Alexander D. Hill, M. A. Lara-Lopez, J. Loveday, B. W. Holwerda
Summary: Galaxy populations are characterized by a bimodal distribution of colors, with blue star-forming and red quiescent subpopulations. The relative abundance of these subpopulations varies with stellar mass and environment. In this study, we investigate the impact of environment using different types of measurements. We analyze a sample of 49,911 galaxies from the Galaxy And Mass Assembly survey and find that the fraction of red galaxies changes with the environment at a fixed stellar mass. The local environmental measures have a stronger influence on the red fraction compared to the large-scale geometric environment measures. Moreover, combining different environmental densities does not fully explain the observed variation in the red fraction, suggesting that different measures contain distinct information.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Andrea Gebek, Maarten Baes, Benedikt Diemer, W. J. G. de Blok, Dylan Nelson, Anand Utsav Kapoor, Peter Camps, Omphile Rabyang, Lerothodi Leeuw
Summary: This study presents the improvement in calculating realistic UV fields and explores the atomic hydrogen properties in simulated galaxies. The results show the discrepancies between the simulated H i maps and observations, mainly due to the effects of supermassive black hole feedback. To better utilize cosmological simulations and upcoming H i/H-2 data, accurate methods to estimate the UV radiation field and generate mock maps are recommended.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
B. Namumba, J. Roman, J. Falcon-Barroso, J. H. Knapen, R. Ianjamasimanana, E. Naluminsa, G. I. G. Jozsa, M. Korsaga, N. Maddox, B. Frank, S. Sikhosana, S. Legodi, C. Carignan, A. A. Ponomareva, T. Jarrett, D. Lucero, O. M. Smirnov, J. M. van der Hulst, D. J. Pisano, K. Malek, L. Marchetti, M. Vaccari, M. Jarvis, M. Baes, M. Meyer, E. A. K. Adams, H. Chen, J. Delhaize, S. H. A. Rajohnson, S. Kurapati, I. Heywood, L. Verdes-Montenegro
Summary: The transformation and evolution of a galaxy are influenced by interactions with its environment, which can be traced using neutral hydrogen (H I). This study presents H I observations of the previously thought to be isolated spiral galaxy NGC 895, revealing possible interaction features and newly discovered H I companions that suggest it is not truly isolated. Combining these observations with deep optical images, the absence of tidal debris between NGC 895 and its companions is shown, but the presence of excess light in the outer parts of the companion galaxy suggests external perturbation and possible interactions.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Ignas Juodzbalis, Christopher J. Conselice, Maitrayee Singh, Nathan Adams, Katherine Ormerod, Thomas Harvey, Duncan Austin, Marta Volonteri, Seth H. Cohen, Rolf A. Jansen, Jake Summers, Rogier A. Windhorst, Jordan C. J. D'Silva, Anton M. Koekemoer, Dan Coe, Simon P. Driver, Brenda Frye, Norman A. Grogin, Madeline A. Marshall, Mario Nonino, Nor Pirzkal, Aaron Robotham, Russell E. Ryan Jr, Rafael Ortiz III, Scott Tompkins, Christopher N. A. Willmer, Haojing Yan
Summary: In this study, a sample of robust high-redshift galaxies is analyzed to select candidate high-redshift active galactic nuclei (AGN). By using a threefold selection procedure, a sample of nine AGN candidates at 6.5< z < 12 is identified, and a lower bound of AGN fraction in this redshift range is measured to be 5±1%. The rest-frame UV colors of the candidate objects suggest their potential as obese black hole galaxies (OBGs). Additionally, the Chandra and VLA maps are investigated to calculate the detection limits, and a z=11.9 candidate source exhibits a morphological shift indicating a potential merger or an unusually strong outflow.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
A. S. G. Robotham, J. C. J. D'Silva, R. A. Windhorst, R. A. Jansen, J. Summers, S. P. Driver, C. N. A. Wilmer, S. Bellstedt
Summary: The James Webb Space Telescope's near-infrared camera has shown serious wispy structures in four of its eight short-wavelength detectors. The structure and strength of these wisps vary greatly with the telescope's position and orientation, making the use of static templates ineffective. By using long-wavelength reference images, we developed a dynamic strategy to mitigate these wisps. Applying this strategy to affected data resulted in visual improvements and reduced noise in the final images.
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
(2023)
Article
Astronomy & Astrophysics
G. J. Bendo, S. A. Urquhart, S. Serjeant, T. Bakx, M. Hagimoto, P. Cox, R. Neri, M. D. Lehnert, H. Dannerbauer, A. Amvrosiadis, P. Andreani, A. J. Baker, A. Beelen, S. Berta, E. Borsato, V Buat, K. M. Butler, A. Cooray, G. De Zotti, L. Dunne, S. Dye, S. Eales, A. Enia, L. Fan, R. Gavazzi, J. Gonzalez-Nuevo, A. Harris, C. N. Herrera, D. H. Hughes, D. Ismail, B. M. Jones, K. Kohno, M. Krips, G. Lagache, L. Marchetti, M. Massardi, H. Messias, M. Negrello, A. Omont, I Perez-Fournon, D. A. Riechers, D. Scott, M. W. L. Smith, F. Stanley, Y. Tamura, P. Temi, P. van der Werf, A. Verma, C. Vlahakis, A. Weiss, C. Yang, A. J. Young
Summary: We present ALMA continuum images of 85 fields selected from Herschel observations. Most of the fields are expected to contain gravitationally lensed or hyperluminous infrared galaxies. We found that about half of the Herschel sources were resolved into multiple ALMA sources and the brightest Herschel sources corresponded to individual ALMA sources. The results suggest that the color temperatures of the sources do not vary significantly with redshift and the dust emissivity indices are largely consistent.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Correction
Astronomy & Astrophysics
Sabine Bellstedt, Simon P. Driver, Aaron S. G. Robotham, Luke J. M. Davies, Kamran R. J. Bogue, Robin H. W. Cook, Abdolhosein Hashemizadeh, Soheil Koushan, Edward N. Taylor, Jessica E. Thorne, Ryan J. Turner, Angus H. Wright
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Jake Summers, Rogier A. Windhorst, Seth H. Cohen, Rolf A. Jansen, Timothy Carleton, Patrick S. Kamieneski, Benne W. Holwerda, Christopher J. Conselice, Nathan J. Adams, Brenda L. Frye, Jose M. Diego, Christopher N. A. Willmer, Rafael Ortiz III, Cheng Cheng, Alex Pigarelli, Aaron Robotham, Jordan C. J. D'Silva, Scott Tompkins, Simon P. Driver, Haojing Yan, Dan Coe, Norman Grogin, Anton M. Koekemoer, Madeline A. Marshall, Nor Pirzkal, Russell E. Ryan Jr
Summary: We have identified 71 distant stars in the early release observations images of James Webb Space Telescope/NIRCam. These stars are likely associated with the outskirts or the Leading Arm of the Large Magellanic Cloud. Spectral energy distribution analysis suggests that these stars are located behind the Magellanic system. The density of these stars in the SMACS 0723 field is significantly higher than that in a blank field.
ASTROPHYSICAL JOURNAL
(2023)