Article
Astronomy & Astrophysics
H. W. Edler, F. de Gasperin, T. W. Shimwell, M. J. Hardcastle, A. Boselli, V. Heesen, H. McCall, D. J. Bomans, M. Brueggen, E. Bulbul, K. T. Chyzy, A. Ignesti, A. Merloni, F. Pacaud, T. H. Reiprich, I. D. Roberts, H. J. A. Rottgering, R. J. van Weeren
Summary: The aim of this study is to investigate the impact of the environment on the evolution of galaxies and the contribution of AGN to ICM heating. Using LOFAR, researchers discovered many galaxies in the Virgo cluster that show clear signs of ram-pressure stripping and revealed previously unknown tails of 150 kpc in length caused by previous AGN activity. The findings of this study are valuable for future research.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
M. S. Mirakhor, S. A. Walker
Summary: Research on the outskirts of the Virgo cluster reveals relatively mild gas clumping levels, possibly due to undetected clumps by the point-source detection procedure. Despite the correction for clumping bringing the gas mass fraction at r(200) into agreement with the universal level, the values outside r(200) remain significantly elevated.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Efrain Gatuzz, J. S. Sanders, K. Dennerl, C. Pinto, A. C. Fabian, T. Tamura, S. A. Walker, J. ZuHone
Summary: In this study, the velocity structure of the Virgo cluster was analyzed in detail using XMM-Newton observations. The presence of high velocity structures, velocity gradient distribution, and possible effects of AGN outflows and gas sloshing were revealed in the complex velocity field of the cluster.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Efrain Gatuzz, J. S. Sanders, K. Dennerl, A. Liu, A. C. Fabian, C. Pinto, D. Eckert, H. Russell, T. Tamura, S. A. Walker, J. ZuHone
Summary: We analyzed the elemental abundances distribution of the Virgo cluster using XMM-Newton observations. By calibrating the EPIC-pn energy scale, we achieved measurement uncertainties down to 150 km/s. We found a radial distribution of metals in the cluster and observed temperature discontinuities around 30 and 90 kpc, corresponding to cold fronts. Our model of elemental ratio profiles supports an early ICM enrichment scenario.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
A. Boselli, M. Fossati, P. Cote, J. C. Cuillandre, L. Ferrarese, S. Gwyn, P. Amram, M. Ayromlou, M. Balogh, G. Bellusci, M. Boquien, G. Gavazzi, G. Hensler, A. Longobardi, D. Nelson, A. Pillepich, J. Roediger, R. Sanchez-Janssen, M. Sun, G. Trinchieri
Summary: This study uses deep narrow-band imaging data obtained from the Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) to derive the H alpha luminosity function of the Virgo cluster. The results show that the slope and characteristic luminosity of the Schechter function in the H alpha luminosity function vary with the mass, X-ray gas temperature, and dynamical pressure of the system. Comparison with cosmological hydrodynamical simulations suggests that the stripping process in simulated galaxies in these environments is more efficient than observed.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
Ryota Ikeda, Takahiro Morishita, Takafumi Tsukui, Benedetta Vulcani, Michele Trenti, Benjamin Metha, Ana Acebron, Pietro Bergamini, Claudio Grillo, Daisuke Iono, Amata Mercurio, Piero Rosati, Eros Vanzella
Summary: We present a search and characterization of ultra-diffuse galaxies (UDGs) in the Frontier Fields cluster Abell 2744 at z = 0.308 using JWST/NIRISS F200W observations. The study identifies 22 UDGs based on morphological parameters, down to a stellar mass of approximately 10^7 M_sun. The research shows that the selected UDGs appear larger in effective radius in F200W images compared to HST/ACS F814W images, suggesting that some of them would not have been identified as UDGs using rest-frame optical wavelengths.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Ian D. Roberts, Toby Brown, Nikki Zabel, Christine D. Wilson, Aeree Chung, Laura C. Parker, Dhruv Bisaria, Alessandro Boselli, Barbara Catinella, Ryan Chown, Luca Cortese, Timothy A. Davis, Sara Ellison, Maria Jesus Jimenez-Donaire, Bumhyun Lee, Rory Smith, Kristine Spekkens, Adam R. H. Stevens, Mallory Thorp, Vincente Villanueva, Adam B. Watts, Charlotte Welker, Hyein Yoon
Summary: We analyze the cold-gas distributions in Virgo cluster galaxies using observations of molecular hydrogen (H-2) and atomic hydrogen (H-i). Our findings show that Virgo galaxies have larger H-i asymmetries compared to non-cluster galaxies, while H-2 asymmetries are only marginally larger. We observe a weak correlation between H-i and H-2 asymmetries over the entire sample, but a stronger correlation for galaxies strongly impacted by environmental perturbations. Additionally, we find excess molecular gas mass on the leading halves of the discs in H-i-tailed Virgo galaxies, accompanied by an excess in the star formation rate.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
Junais, S. Boissier, A. Boselli, L. Ferrarese, P. Cote, S. Gwyn, J. Roediger, S. Lim, E. W. Peng, J. C. Cuillandre, A. Longobardi, M. Fossati, G. Hensler, J. Koda, J. Bautista, M. Boquien, K. Malek, P. Amram, Y. Roehlly
Summary: This study reveals the transformation process of a gas-rich ultra-diffuse galaxy into a red and quiescent one through ram-pressure stripping. The formation of star complexes within the stripped gas is observed. This process could explain the lack of star-forming ultra-diffuse galaxies in nearby clusters.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
Joachim Janz, Heikki Salo, Alan H. Su, Aku Venhola
Summary: The study analyses the color versus surface brightness for galaxies in the Virgo cluster and compares it to the Fornax cluster to examine the impact of ram pressure on galaxy transformation. The results show similarities in the color-surface brightness correlation between the two clusters, indicating a scenario of transformation through the quenching of star formation. However, there are differences in the fraction of early-type galaxies between the Virgo and Fornax clusters, suggesting unique characteristics of the Virgo cluster despite its high mass.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
G. Riccio, K. Malek, A. Nanni, M. Boquien, V Buat, D. Burgarella, D. Donevski, M. Hamed, P. Hurley, R. Shirley, A. Pollo
Summary: The study investigates how LSST data can be used to constrain physical properties of normal star-forming galaxies, concluding that while LSST measurements provide reliable estimates for stellar masses, there is a significant overestimate of dust-related properties. Corrections using auxiliary data such as rest-frame mid-IR observations or the AFUV-M-star relation are necessary to improve the accuracy of the estimates.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
Carlos G. Escudero, Arianna Cortesi, Favio R. Faifer, Leandro A. Sesto, Analia Smith Castelli, Evelyn J. Johnston, Victoria Reynaldi, Ana L. Chies-Santos, Ricardo Salinas, Karin Menendez-Delmestre, Thiago S. Goncalves, Marco Grossi, Claudia Mendes de Oliveira
Summary: This work analyzes the photometric and spectroscopic properties of the globular cluster system in the peculiar galaxy, NGC 4382. The study reveals a complex color distribution of the globular clusters, confirming the existence of three distinct photometric groups. The spectroscopic analysis indicates the presence of classic blue and red globular clusters, as well as a younger group. The analysis of the galaxy's long-slit data further supports the common origin of the globular clusters and the galaxy, suggesting a recent merger.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Alan H. Su, Heikki Salo, Joachim Janz, Aku Venhola, Reynier F. Peletier
Summary: This study investigates the relations between nuclear star clusters and their host galaxies and compares the structural properties of nucleated and non-nucleated galaxies. The results show that the properties of nuclear star clusters differ based on the host galaxy's stellar mass, and the environment plays a significant role in the nucleation of galaxies.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
A. H. Su, H. Salo, J. Janz, E. Laurikainen, A. Venhola, R. F. Peletier, E. Iodice, M. Hilker, M. Cantiello, N. Napolitano, M. Spavone, M. A. Raj, G. van de Ven, S. Mieske, M. Paolillo, M. Capaccioli, E. A. Valentijn, A. E. Watkins
Summary: This study investigates the structural properties of galaxies in cluster and group environments, specifically focusing on the Fornax main cluster and Fornax A group. The results show significant differences in the properties of galaxies between these two environments, with Fornax A group galaxies being bluer, smaller, brighter, and more asymmetric and clumpy compared to those in the Fornax main cluster. Additionally, there are cluster-centric trends observed in the Fornax main cluster, indicating changes in galaxy properties as they move towards the cluster center.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
A. Boselli, M. Fossati, J. Roediger, M. Boquien, M. Fumagalli, M. Balogh, S. Boissier, J. Braine, L. Ciesla, P. Cote, J. C. Cuillandre, L. Ferrarese, G. Gavazzi, S. Gwyn, Junais, G. Hensler, A. Longobardi, M. Sun
Summary: Using H alpha fluxes from 384 star-forming galaxies, this study explores scaling relations among star formation rate, specific star formation rate, stellar mass, stellar mass surface density, and atomic gas depletion timescale for a complete sample of galaxies. The data extends previous works to a dynamic range in stellar mass and star formation rate that has never been explored so far.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
M. M. Sardaneta, P. Amram, A. Boselli, B. Vollmer, M. Rosado, M. Sanchez-Cruces, A. Longobardi, C. Adami, M. Fossati, B. Epinat, M. Boquien, P. Cote, G. Hensler, Junais, H. Plana, J. C. Cuillandre, L. Ferrarese, J. L. Gach, J. A. Gomez-Lopez, S. Gwyn, G. Trinchieri
Summary: Using the VESTIGE survey, a long and diffuse tail of ionised gas was discovered in the late-type galaxy NGC 4330, indicating an ongoing ram pressure stripping event. The data showed that the galaxy has an inner solid-body rotation, noncircular streaming motions outside and in the features formed during the interaction with the surrounding intracluster medium, and a decrease in rotational velocity of the gas with increasing distance from the galaxy disc.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
A. Boselli, M. Fossati, J. C. Cuillandre, S. Boissier, M. Boquien, V Buat, D. Burgarella, G. Consolandi, L. Cortese, P. Cote, S. Cote, P. Durrell, L. Ferrarese, M. Fumagalli, G. Gavazzi, S. Gwyn, G. Hensler, B. Koribalski, J. Roediger, Y. Roehlly, D. Russeil, M. Sun, E. Toloba, B. Vollmer, A. Zavagno
ASTRONOMY & ASTROPHYSICS
(2018)
Article
Astronomy & Astrophysics
M. Fossati, J. T. Mendel, A. Boselli, J. C. Cuillandre, B. Vollmer, S. Boissier, G. Consolandi, L. Ferrarese, S. Gwyn, P. Amram, M. Boquien, V. Buat, D. Burgarella, L. Cortese, P. Cote, S. Cote, P. Durrell, M. Fumagalli, G. Gavazzi, J. Gomez-Lopez, G. Hensler, B. Koribalski, A. Longobardi, E. W. Peng, J. Roediger, M. Sun, E. Toloba
ASTRONOMY & ASTROPHYSICS
(2018)
Article
Astronomy & Astrophysics
A. Boselli, M. Fossati, J. C. Cuillandre, S. Boissier, M. Boquien, V Buat, D. Burgarella, G. Consolandi, L. Cortese, P. Cote, S. Cote, P. Durrell, L. Ferrarese, M. Fumagalli, G. Gavazzi, S. Gwyn, G. Hensler, B. Koribalski, J. Roediger, Y. Roehlly, D. Russeil, M. Sun, E. Toloba, B. Vollmer, A. Zavagno
ASTRONOMY & ASTROPHYSICS
(2018)
Article
Astronomy & Astrophysics
M. Fossati, J. T. Mendel, A. Boselli, J. C. Cuillandre, B. Vollmer, S. Boissier, G. Consolandi, L. Ferrarese, S. Gwyn, P. Amram, M. Boquien, V. Buat, D. Burgarella, L. Cortese, P. Cote, S. Cote, P. Durrell, M. Fumagalli, G. Gavazzi, J. Gomez-Lopez, G. Hensler, B. Koribalski, A. Longobardi, E. W. Peng, J. Roediger, M. Sun, E. Toloba
ASTRONOMY & ASTROPHYSICS
(2018)
Article
Astronomy & Astrophysics
A. Boselli, M. Fossati, A. Longobardi, G. Consolandi, P. Amram, M. Sun, P. Andreani, M. Boquien, J. Braine, F. Combes, P. Cote, J. C. Cuillandre, P. A. Duc, E. Emsellem, L. Ferrarese, G. Gavazzi, S. Gwynn, G. Hensler, E. W. Peng, H. Plana, J. Roediger, R. Sanchez-Janssen, M. Sarzi, P. Serra, G. Trinchieri
ASTRONOMY & ASTROPHYSICS
(2019)
Article
Astronomy & Astrophysics
A. Boselli, A. Lupi, B. Epinat, P. Amram, M. Fossati, J. P. Anderson, S. Boissier, M. Boquien, G. Consolandi, P. Cote, J. C. Cuillandre, L. Ferrarese, L. Galbany, G. Gavazzi, J. A. Gomez-Lopez, S. Gwyn, G. Hensler, J. Hutchings, H. Kuncarayakti, A. Longobardi, E. W. Peng, H. Plana, J. Postma, J. Roediger, Y. Roehlly, C. Schimd, G. Trinchieri, B. Vollmer
Summary: The study of galaxy IC 3476 reveals that it is undergoing an almost edge-on ram pressure stripping event, resulting in the complete quenching of star formation activity in the leading edge of the disc. Gas compression along the stellar disc increases electron density and boosts the star formation process.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
Junais, S. Boissier, A. Boselli, M. Boquien, A. Longobardi, Y. Roehlly, P. Amram, M. Fossati, J-C Cuillandre, S. Gwyn, L. Ferrarese, P. Cote, J. Roediger, S. Lim, E. W. Peng, G. Hensler, G. Trinchieri, J. Koda, N. Prantzos
Summary: The evolution of galaxies depends on interactions with their environment. A peculiar system NGVS 3543, a UDG located near an HI gas cloud, shows evidence of recent interaction with the surrounding cluster environment. Observations suggest that NGVS 3543 underwent ram-pressure stripping around 100 million years ago, transforming it into a red and quiescent UDG with star formation in the stripped gas.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
Matthew A. Taylor, Youkyung Ko, Patrick Cote, Laura Ferrarese, Eric W. Peng, Ann Zabludoff, Joel Roediger, Ruben Sanchez-Janssen, David Hendel, Igor Chilingarian, Chengze Liu, Chelsea Spengler, Hongxin Zhang
Summary: The study presents the first results of measuring the kinematics of globular clusters around M49, the brightest galaxy in the Virgo galaxy cluster, revealing insights into the transition of GCs related to M49 and those representing the intra-cluster medium of Virgo B. An anomaly in the line-of-sight radial velocity dispersion profile near M49 suggests a previous accretion event, while a subsample of GCs with velocities representative of the interacting dwarf galaxy VCC 1249 indicates ongoing stripping of GCs during its passage through M49's halo, pointing towards ongoing giant halo assembly in a cluster environment.
ASTROPHYSICAL JOURNAL
(2021)
Article
Astronomy & Astrophysics
Elisa Toloba, Laura V. Sales, Sungsoon Lim, Eric W. W. Peng, Puragra Guhathakurta, Joel Roediger, Kaixiang Wang, J. Christopher Mihos, Patrick Cote, Patrick R. Durrell, Laura Ferrarese
Summary: We used Keck/DEIMOS spectroscopy to observe the first complete sample of ultradiffuse galaxies (UDGs) in the Virgo cluster. We selected 10 UDGs in Virgo that contain at least 10 globular cluster (GC) candidates and deviate significantly from scaling relations of size, surface brightness, and luminosity. By measuring the velocity dispersion of their GC satellites, we found a range of UDGs, from those with no dark matter to those that follow known scaling relations to those with extreme dark matter dominance that breaks scaling relations. Further studies are needed to confirm these findings and explore the physics behind these peculiar galaxies.
ASTROPHYSICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
Sungsoon Lim, Patrick Cote, Eric W. Peng, Laura Ferrarese, Joel C. Roediger, Patrick R. Durrell, J. Christopher Mihos, Kaixiang Wang, S. D. J. Gwyn, Jean-Charles Cuillandre, Chengze Liu, Ruben Sanchez-Janssen, Elisa Toloba, Laura Sales, Puragra Guhathakurta, Ariane Lancon, Thomas H. Puzia
ASTROPHYSICAL JOURNAL
(2020)
Article
Astronomy & Astrophysics
Laura Ferrarese, Patrick Cote, Lauren A. MacArthur, Patrick R. Durrell, S. D. J. Gwyn, Pierre-Alain Duc, Ruben Sanchez-Janssen, Matthew Santos, John P. Blakeslee, Alessandro Boselli, Fred Boyer, Michele Cantiello, Stephane Courteau, Jean-Charles Cuillandre, Eric Emsellem, Thomas Erben, Giuseppe Gavazzi, Puragra Guhathakurta, Marc Huertas-Company, Andres Jordan, Ariane Lancon, Chengze Liu, Simona Mei, J. Christopher Mihos, Eric W. Peng, Thomas H. Puzia, Joel Roediger, David Schade, James E. Taylor, Elisa Toloba, Hongxin Zhang
ASTROPHYSICAL JOURNAL
(2020)
Article
Astronomy & Astrophysics
R. Sanchez-Janssen, T. H. Puzia, L. Ferrarese, P. Cote, P. Eigenthaler, B. Miller, Y. Ordenes-Briceno, E. W. Peng, K. X. Ribbeck, J. Roediger, C. Spengler, M. A. Taylor
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2019)
Article
Astronomy & Astrophysics
Ruben Sanchez-Janssen, Patrick Cote, Laura Ferrarese, Eric W. Peng, Joel Roediger, John P. Blakeslee, Eric Emsellem, Thomas H. Puzia, Chelsea Spengler, James Taylor, Karla A. Alamo-Martinez, Alessandro Boselli, Michele Cantiello, Jean-Charles Cuillandre, Pierre-Alain Duc, Patrick Durrell, Stephen Gwyn, Lauren A. MacArthur, Ariane Lancon, Sungsoon Lim, Chengze Liu, Simona Mei, Bryan Miller, Roberto Munoz, J. Christopher Mihos, Sanjaya Paudel, Mathieu Powalka, Elisa Toloba
ASTROPHYSICAL JOURNAL
(2019)
Article
Astronomy & Astrophysics
Chengze Liu, Patrick Cote, Eric W. Peng, Joel Roediger, Hongxin Zhang, Laura Ferrarese, Ruben Sanchez-Janssen, Puragra Guhathakurta, Xiaohu Yang, Yipeng Jing, Karla Alamo-Martinez, John P. Blakeslee, Alessandro Boselli, Jean-Charles Cuilandre, Pierre-Alain Duc, Patrick Durrell, Stephen Gwyn, Andres Jordan, Youkyung Ko, Ariane Lancon, Sungsoon Lim, Alessia Longobardi, Simona Mei, J. Christopher Mihos, Roberto Munoz, Mathieu Powalka, Thomas Puzia, Chelsea Spengler, Elisa Toloba
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
(2020)
Article
Astronomy & Astrophysics
Hong-Xin Zhang, Thomas H. Puzia, Eric W. Peng, Chengze Liu, Patrick Cote, Laura Ferrarese, Pierre-Alain Duc, Paul Eigenthaler, Sungsoon Lim, Ariane Lancon, Roberto P. Munoz, Joel Roediger, Ruben Sanchez-Janssen, Matthew A. Taylor, Jincheng Yu
ASTROPHYSICAL JOURNAL
(2018)
