Article
Astronomy & Astrophysics
M. Charmetant, J. Erler
Summary: In this study, we assessed the detection and purity of the thermal Sunyaev-Zeldovich (tSZ) power spectrum measurements from the Fred Young Submillimeter Telescope and the Simons Observatory Large Aperture Telescope. The results show that the high-frequency coverage of the FYST helps reduce contamination from the cosmic infrared background (CIB) and improves the detection of the tSZ signal.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
Elizabeth Lee, Jens Chluba, Gilbert P. Holder
Summary: This paper investigates the radio Sunyaev-Zeldovich (SZ) effect caused by the cosmological radio background. The authors propose easily calculable kinematic and relativistic temperature corrections to this effect and discuss how it affects the spectrum of the radio SZ effect in different cases. By measuring the SZ signal around the radio null, constraints can be placed on the properties of the cosmological radio background, and combining it with SZ measurements from large cluster samples could help break degeneracies between different contributions.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Simon R. Dicker, Elia S. Battistelli, Tanay Bhandarkar, Mark J. Devlin, Shannon M. Duff, Gene Hilton, Matt Hilton, Adam D. Hincks, Johannes Hubmayr, Kevin Huffenberger, John P. Hughes, Luca Di Mascolo, Brian S. Mason, J. A. B. Mates, Jeff McMahon, Tony Mroczkowski, Sigurd Naess, John Orlowski-Scherer, Bruce Partridge, Federico Radiconi, Charles Romero, Craig L. Sarazin, Neelima Sehgal, Jonathan Sievers, Cristobal Sifon, Joel Ullom, Leila R. Vale, Michael R. Vissers, Zhilei Xu
Summary: This study investigates the impact of compact sources on tSZE in galaxy clusters through measuring 90 GHz compact sources from 30 clusters. It reveals the effect of source contamination on ACT tSZE measurements and establishes an empirical relationship between radio surveys and tSZE measurements.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Elise Darragh-Ford, Adam B. Mantz, Elena Rasia, Steven W. Allen, R. Glenn Morris, Jack Foster, Robert W. Schmidt, Guillermo Wenrich
Summary: By calculating the SPA morphology metrics for maps of X-ray emissivity from hydrodynamical simulations of galaxy clusters, a relaxed sample of simulated clusters is selected, which is in good agreement with observations. The concentration-mass-redshift relation is constrained for both the simulated and observed samples, showing a clear detection of decreasing concentration with redshift for the first time.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Majidul Rahaman, Ramij Raja, Abhirup Datta, Jack O. Burns, David Rapetti
Summary: Extended, steep, and ultra-steep spectrum radio emission in a galaxy cluster is usually associated with recent mergers. In this study, a high-resolution GMRT radio map reveals the complex structure of a radio phoenix in the A85 galaxy cluster, which is confirmed by Chandra X-ray observations to be associated with a bow shock.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Marta Nowotka, Chian-Chou Chen, Fabrizio Arrigoni Battaia, Michele Fumagalli, Zheng Cai, Elisabeta Lusso, J. Xavier Prochaska, Yujin Yang
Summary: By analyzing SCUBA-2 data, an overabundance of 850 μm-selected submillimeter sources around four ELANe is reported, suggesting their connection with the Mpc-scale environment. This supports the co-evolution scenario for SMGs and quasars, and indicates significant background light fluctuations on the survey scales. Additionally, the SFR densities of each ELAN field are estimated, revealing a value 300 times greater than the cosmic mean.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
D. Rosselli, F. Marulli, A. Veropalumbo, A. Cimatti, L. Moscardini
Summary: By analyzing the spectroscopic galaxy and galaxy cluster samples from the Sloan Digital Sky Survey, we derived new constraints on gravity theory. We detected the gravitational redshift effect in the velocity distribution of cluster member galaxies and compared it with the predictions of three different gravity theories. Our results are consistent with general relativity and the DGP model, but marginally disagree with the predictions of the f(R) model.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
Tianyue Chen, Mathieu Remazeilles
Summary: Residual foreground contamination by the thermal Sunyaev-Zeldovich effect affects the intrinsic cross-correlation between the cosmic microwave background (CMB) lensing and large-scale structure (LSS). Through analysis, we find that the contamination causes biases in the lensing convergence maps, validating earlier theoretical predictions. The results highlight the importance of deprojecting the tSZ effect from CMB maps and using tSZ-free CMB lensing maps for cross-correlations with LSS data.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Frode K. Hansen, Ezequiel F. Boero, Heliana E. Luparello, Diego Garcia Lambas
Summary: A new cosmic microwave background (CMB) foreground has been discovered, which interacts with CMB photons around large spiral galaxies. This foreground can significantly impact the CMB fluctuation map and create CMB anomalies. By studying the temperature decrements around these galaxies, a foreground map model was created and found to have a strong correlation with the Planck CMB map. The existence of this foreground component suggests that the largest scales of the CMB may change, and a reliable corrected CMB map can only be achieved through further research and testing.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
Jenny T. Wan, Adam B. Mantz, Jack Sayers, Steven W. Allen, R. Glenn Morris, Sunil R. Golwala
Summary: This study uses a sample of 14 massive, dynamically relaxed galaxy clusters to constrain the Hubble constant. The intrinsic scatter in the X-ray/SZ pressure ratio is primarily due to triaxiality and projection effects.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Rosa Calvi, Gianluca Castignani, Helmut Dannerbauer
Summary: This research systematically searched for distant protoclusters around a sample of spectroscopically confirmed submillimeter galaxies (SMGs). The study found that SMGs are distributed in eight large-scale protoclusters, with robust detections of galaxy overdensities for the majority of the SMGs. The analysis also revealed a correlation between the gas mass of the SMGs and the significance of the associated overdensity.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
Syeda Lammim Ahad, Yannick M. Bahe, Henk Hoekstra
Summary: The study of diffuse light within galaxy groups and clusters provides valuable insights into the growth of massive cosmic structures. It is challenging to detect the diffuse light individually due to low surface brightness, and the choice of group centre can be ambiguous. However, stacking multiple groups together offers a promising alternative for easier interpretation of the signal.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Syeda Lammim Ahad, Yannick M. Bahe, Henk Hoekstra
Summary: The study explores the challenges in detecting and interpreting the diffuse light within galaxy groups and clusters. It finds that the brightest galaxy in a group is not always at the center of the gravitational potential, leading to potential miscentring. However, this miscentring has minimal impact on the average mass density and surface brightness profiles.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Sandeep Kumar Acharya, Jiten Dhandha, Jens Chluba
Summary: The excess radio background observed at similar to 0.1-10GHz has sparked scientific debate in recent years. A recent hypothesis suggests that the soft photon emission from accreting primordial black holes could explain this signal. However, our study shows that the expected ultraviolet photon emission from these accreting black holes would fully ionize the universe at z > 6, thereby diminishing the 21-cm absorption signature at z similar to 20 and conflicting with the current limits of cosmic microwave background anisotropy and average spectral distortion.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
T. N. Varga, D. Gruen, S. Seitz, N. MacCrann, E. Sheldon, W. G. Hartley, A. Amon, A. Choi, A. Palmese, Y. Zhang, M. R. Becker, J. McCullough, E. Rozo, E. S. Rykoff, C. To, S. Grandis, G. M. Bernstein, S. Dodelson, K. Eckert, S. Everett, R. A. Gruendl, I. Harrison, K. Herner, R. P. Rollins, I. Sevilla-Noarbe, M. A. Troxel, B. Yanny, J. Zuntz, H. T. Diehl, M. Jarvis, M. Aguena, S. Allam, J. Annis, E. Bertin, S. Bhargava, D. Brooks, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, M. Costanzi, L. N. da Costa, M. E. S. Pereira, J. De Vicente, S. Desai, J. P. Dietrich, I. Ferrero, B. Flaugher, J. Garcia-Bellido, E. Gaztanaga, D. W. Gerdes, J. Gschwend, G. Gutierrez, S. R. Hinton, K. Honscheid, T. Jeltema, K. Kuehn, N. Kuropatkin, M. A. G. Maia, M. March, P. Melchior, F. Menanteau, R. Miquel, R. Morgan, J. Myles, F. Paz-Chinchon, A. A. Plazas, A. K. Romer, E. Sanchez, V. Scarpine, M. Schubnell, S. Serrano, M. Smith, M. Soares-Santos, E. Suchyta, M. E. C. Swanson, G. Tarle, D. Thomas, J. Weller
Summary: We have developed a novel data-driven method for generating synthetic optical observations of galaxy clusters. By measuring and modeling the photometric properties of galaxy clusters and extrapolating the galaxy populations, we can create synthetic galaxy clusters in the same format as actual survey observations. This method can be used to test systematic uncertainties in cluster mass measurements.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
A. S. Maniyar, M. Bethermin, G. Lagache
ASTRONOMY & ASTROPHYSICS
(2018)
Article
Astronomy & Astrophysics
A. S. Maniyar, M. Bethermin, G. Lagache
ASTRONOMY & ASTROPHYSICS
(2018)
Article
Astronomy & Astrophysics
A. Maniyar, G. Lagache, M. Bethermin, S. Ilic
ASTRONOMY & ASTROPHYSICS
(2019)
Article
Astronomy & Astrophysics
Shengqi Yang, Rachel S. Somerville, Anthony R. Pullen, Gergo Popping, Patrick C. Breysse, Abhishek S. Maniyar
Summary: Submillimeter emission lines are important for tracing the cold gas and ionized environments of galaxies, and for future line intensity mapping surveys. Physics-based simulations predicting emission lines from different interstellar medium phases are crucial for understanding galaxy physical conditions. This study presents a framework for creating mock submillimeter line intensity maps and shows significant differences in predicted star formation rate and line emission scaling relations compared to empirical relations. These differences impact key summary statistics used in intensity mapping, emphasizing the need for realistic models in forecasting the capabilities of future surveys.
ASTROPHYSICAL JOURNAL
(2021)
Article
Astronomy & Astrophysics
Shengqi Yang, Gergoe Popping, Rachel S. Somerville, Anthony R. Pullen, Patrick C. Breysse, Abhishek S. Maniyar
Summary: This study presents an empirical multiline emission model that describes the characteristics of emission lines produced by the interstellar medium at different redshift ranges. By fitting to semianalytic simulation results, the model can efficiently predict the statistics of ISM emission lines, which is of great importance for upcoming LIM surveys.
ASTROPHYSICAL JOURNAL
(2022)
Article
Astronomy & Astrophysics
Patrick C. Breysse, Shengqi Yang, Rachel S. Somerville, Anthony R. Pullen, Gergoe Popping, Abhishek S. Maniyar
Summary: The Millimeter-wave Intensity Mapping Experiment (mmIME) reported excess spatial fluctuations at a wavelength of 3 mm, which could be due to unresolved emissions of CO rotational transitions. Using state-of-the-art semianalytic simulations, the study found that the predictions are slightly inconsistent with the mmIME result, and proposed simple modifications to resolve this tension.
ASTROPHYSICAL JOURNAL
(2022)
Article
Astronomy & Astrophysics
Ziang Yan, Ludovic van Waerbeke, Angus H. Wright, Maciej Bilicki, Shiming Gu, Hendrik Hildebrandt, Abhishek S. Maniyar, Tilman Troster
Summary: In this work, a new method for probing the star formation history of the Universe is presented, which involves tomographic cross-correlation between the cosmic infrared background (CIB) and galaxy samples. The results demonstrate the effectiveness of this method in constraining the star formation rate and galaxy abundance, providing important insights into the evolution of the Universe.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Physics, Multidisciplinary
Abhishek S. Maniyar, Simone Ferraro, Emmanuel Schaan
Summary: We have discovered a new cosmological signal, the Doppler-boosted cosmic infrared background (DB CIB), which originates from the peculiar motion of galaxies that emit thermal dust and contribute to the cosmic infrared background (CIB). This new observable serves as an independent probe of the cosmic velocity field, similar to the well-known kinematic Sunyaev-Zel'dovich (KSZ) effect. Notably, DB CIB is not affected by the KSZ optical depth degeneracy, making it unaffected by the complex astrophysics associated with galaxy formation. Our forecasts indicate that the DB CIB effect can be detected through the cross-correlation of CCAT-Prime and DESI-like experiments, and it also introduces a new CMB foreground that can potentially bias future KSZ cross-correlations if not properly accounted for.
PHYSICAL REVIEW LETTERS
(2023)
Article
Astronomy & Astrophysics
Yucheng Zhang, Anthony R. Pullen, Rachel S. Somerville, Patrick C. Breysse, John C. Forbes, Shengqi Yang, Yin Li, Abhishek S. Maniyar
Summary: Line-intensity mapping (LIM) is a promising technique for studying the global distribution of galaxy properties. In this work, a physically motivated modeling framework called conditional galaxy property distribution (CGPD) is introduced and modeled. CGPD represents the distribution of galaxy properties conditioned on halo mass and redshift, and it can be used to derive important galaxy distribution functions and scaling relations. Using two different types of cosmological galaxy simulations, it is found that a Gaussian mixture model (GMM) can accurately describe the CGPD with just a few components.
ASTROPHYSICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
Abhishek S. Maniyar, Athanasia Gkogkou, William R. Coulton, Zack Li, Guilaine Lagache, Anthony R. Pullen
Summary: High resolution cosmic microwave background (CMB) experiments have allowed precise measurements of CMB temperature power spectrum at small scales. This paper explores the presence of extragalactic CO molecular rotational line emissions in CMB maps and their contribution to the power spectrum. The results show that the CO emissions need to be considered in CMB auto-power spectrum and cross-correlation studies.
Article
Astronomy & Astrophysics
Abhishek S. Maniyar, Emmanuel Schaan, Anthony R. Pullen
Summary: This paper introduces a new technique that combines line intensity mapping and lensing to explore the high-redshift universe. The paper proposes a foreground avoidance method that effectively eliminates the interference bias. This method demonstrates robustness to changes in the amplitude of the interference power and non-Gaussianity.
Article
Astronomy & Astrophysics
Yucheng Zhang, Anthony R. Pullen, Abhishek S. Maniyar
Summary: Cross-correlating CMB lensing and galaxy clustering can improve constraints on the local primordial non-Gaussianity parameter f(NL) and the growth rate of structure. Using a SFB decomposition with large radial modes can significantly enhance the constraint on f(NL). Future wide-field high-redshift photometric surveys may lead to improved constraints.
Article
Astronomy & Astrophysics
Abhishek S. Maniyar, Yacine Ali-Haimoud, Julien Carron, Antony Lewis, Mathew S. Madhavacheril
Summary: Recent research has shown that the traditional quadratic estimators used in CMB lensing analysis may not be optimal for high-sensitivity experiments. A new global-minimum-variance lensing quadratic estimator has been proposed and demonstrated to provide better results. Future lensing analyses should consider implementing this more effective method.