Results 1 to 10 of about 4,976 (269)

Forward Modeling of Galaxy Populations for Cosmological Redshift Distribution Inference

The Astrophysical Journal Supplement Series, 2023
We present a forward-modeling framework for estimating galaxy redshift distributions from photometric surveys. Our forward model is composed of: a detailed population model describing the intrinsic distribution of the physical characteristics of galaxies,
Justin Alsing, Hiranya Peiris, Daniel Mortlock, Joel Leja, Boris Leistedt   +4 more
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HectoMAP: The Complete Redshift Survey (Data Release 2)

The Astrophysical Journal, 2023
HectoMAP is a dense redshift survey of 95,403 galaxies based primarily on MMT spectroscopy with a median redshift z = 0.345. The survey covers 54.64 deg ^2 in a 1.°5 wide strip across the northern sky centered at a decl. of 43.°25. We report the redshift,
Jubee Sohn, Margaret J. Geller, Ho Seong Hwang, Daniel G. Fabricant, Yousuke Utsumi, Ivana Damjanov   +5 more
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Target Selection and Sample Characterization for the DESI LOW-Z Secondary Target Program

The Astrophysical Journal, 2023
We introduce the DESI LOW- Z Secondary Target Survey, which combines the wide-area capabilities of the Dark Energy Spectroscopic Instrument (DESI) with an efficient, low-redshift target selection method.
Elise Darragh-Ford, John F. Wu, Yao-Yuan Mao, Risa H. Wechsler, Marla Geha, Jaime E. Forero-Romero, ChangHoon Hahn, Nitya Kallivayalil, John Moustakas, Ethan O. Nadler, Marta Nowotka, J. E. G. Peek, Erik J. Tollerud, Benjamin Weiner, J. Aguilar, S. Ahlen, D. Brooks, A. P. Cooper, A. de la Macorra, A. Dey, K. Fanning, A. Font-Ribera, S. Gontcho A Gontcho, K. Honscheid, T. Kisner, Anthony Kremin, M. Landriau, Michael E. Levi, P. Martini, Aaron M. Meisner, R. Miquel, Adam D. Myers, Jundan Nie, N. Palanque-Delabrouille, W. J. Percival, F. Prada, D. Schlegel, M. Schubnell, Gregory Tarlé, M. Vargas-Magaña, Zhimin Zhou, H. Zou   +41 more
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The DESI Survey Validation: Results from Visual Inspection of Bright Galaxies, Luminous Red Galaxies, and Emission-line Galaxies

The Astrophysical Journal, 2023
The Dark Energy Spectroscopic Instrument (DESI) Survey has obtained a set of spectroscopic measurements of galaxies to validate the final survey design and target selections.
Ting-Wen Lan, R. Tojeiro, E. Armengaud, J. Xavier Prochaska, T. M. Davis, David M. Alexander, A. Raichoor, Rongpu Zhou, Christophe Yèche, C. Balland, S. BenZvi, A. Berti, R. Canning, A. Carr, H. Chittenden, S. Cole, M.-C. Cousinou, K. Dawson, Biprateep Dey, K. Douglass, A. Edge, S. Escoffier, A. Glanville, S. Gontcho A Gontcho, J. Guy, C. Hahn, C. Howlett, Ho Seong Hwang, L. Jiang, A. Kovács, M. Mezcua, S. Moore, S. Nadathur, M. Oh, D. Parkinson, A. Rocher, A. J. Ross, V. Ruhlmann-Kleider, C. G. Sabiu, K. Said, C. Saulder, D. Sierra-Porta, B. Weiner, J. Yu, P. Zarrouk, Y. Zhang, H. Zou, S. Ahlen, S. Bailey, D. Brooks, A. P. Cooper, A. de la Macorra, A. Dey, G. Dhungana, P. Doel, S. Eftekharzadeh, K. Fanning, A. Font-Ribera, L. Garrison, E. Gaztañaga, R. Kehoe, T. Kisner, A. Kremin, M. Landriau, L. Le Guillou, Michael E. Levi, C. Magneville, Aaron M. Meisner, R. Miquel, J. Moustakas, Adam D. Myers, Jeffrey A. Newman, J. D. Nie, N. Palanque-Delabrouille, W. J. Percival, C. Poppett, F. Prada, M. Schubnell, Gregory Tarlé, B. A. Weaver, K. Zhang, Zhimin Zhou   +81 more
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Fractal analysis of the UltraVISTA galaxy survey

Physics Letters B, 2021
This paper seeks to test if the large-scale galaxy distribution can be characterized as a fractal system. Tools appropriate for describing galaxy fractal structures with a single fractal dimension D in relativistic settings are developed and applied to ...
Sharon Teles, Amanda R. Lopes, Marcelo B. Ribeiro   +2 more
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The Spectroscopic Data Processing Pipeline for the Dark Energy Spectroscopic Instrument

The Astronomical Journal, 2023
We describe the spectroscopic data processing pipeline of the Dark Energy Spectroscopic Instrument (DESI), which is conducting a redshift survey of about 40 million galaxies and quasars using a purpose-built instrument on the 4 m Mayall Telescope at Kitt
J. Guy, S. Bailey, A. Kremin, Shadab Alam, D. M. Alexander, C. Allende Prieto, S. BenZvi, A. S. Bolton, D. Brooks, E. Chaussidon, A. P. Cooper, K. Dawson, A. de la Macorra, A. Dey, Biprateep Dey, G. Dhungana, D. J. Eisenstein, A. Font-Ribera, J. E. Forero-Romero, E. Gaztañaga, S. Gontcho A Gontcho, D. Green, K. Honscheid, M. Ishak, R. Kehoe, D. Kirkby, T. Kisner, Sergey E. Koposov, Ting-Wen Lan, M. Landriau, L. Le Guillou, Michael E. Levi, C. Magneville, Christopher J. Manser, P. Martini, Aaron M. Meisner, R. Miquel, J. Moustakas, Adam D. Myers, Jeffrey A. Newman, Jundan Nie, N. Palanque-Delabrouille, W. J. Percival, C. Poppett, F. Prada, A. Raichoor, C. Ravoux, A. J. Ross, E. F. Schlafly, D. Schlegel, M. Schubnell, Ray M. Sharples, Gregory Tarlé, B. A. Weaver, Christophe Yéche, Rongpu Zhou, Zhimin Zhou, H. Zou   +57 more
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Searching for high-z DSFGs with NIKA2 and NOEMA [PDF]

EPJ Web of Conferences, 2022
As the possible progenitors of passive galaxies at z=2-3, dusty starforming galaxies (DSFGs) at z>4 provide a unique perspective to study the formation, assembly, and early quenching of massive galaxies in the early Universe.
Bing L., Adam R., Ade P., Ajeddig H., André P., Artis E., Aussel H., Beelen A., Benoît A., Berta S., Béthermin M., Bourrion O., Calvo M., Catalano A., De Petris M., Désert F.-X., Doyle S., Driessen E. F. C., Gomez A., Goupy J., Kéruzoré F., Kramer C., Ladjelate B., Lagache G., Leclercq S., Lestrade J.-F., Macías-Pérez J.-F., Maury A., Mauskopf P., Mayet F., Monfardini A., Muñoz-Echeverría M., Neri R., Omont A., Perotto L., Pisano G., Ponthieu N., Revéret V., Rigby A.J., Ritacco A., Romero C., Roussel H., Ruppin F., Schuster K., Shu S., Sievers A., Tucker C., Zylka R.   +47 more
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Luminosity-Environment Relation in the Lowz Sample of the SDSS-III

Open Astronomy, 2016
In this work, we examine the environmental dependence of the u-, g-, r-, i- and z-band luminosities in the LOWZ sample of the Sloan Digital Sky Survey Data Release 10 (SDSS DR10).
Deng Xin-Fa, Qi Xiao-Ping, Wu Ping, Jiang Peng, Qian Xiao-Xia, Song Jun, Ding Ying-Ping   +6 more
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Groups and Protocluster Candidates in the CLAUDS and HSC-SSP Joint Deep Surveys

The Astrophysical Journal, 2022
Using the extended halo-based group finder developed by Yang et al., which is able to deal with galaxies via spectroscopic and photometric redshifts simultaneously, we construct galaxy group and candidate protocluster catalogs in a wide redshift range (0
Qingyang Li, Xiaohu Yang, Chengze Liu, Yipeng Jing, Min He, Jia-Sheng Huang, Y. Sophia Dai, Marcin Sawicki, Stephane Arnouts, Stephen Gwyn, Thibaud Moutard, H. J. Mo, Kai Wang, Antonios Katsianis, Weiguang Cui, Jiaxin Han, I-Non Chiu, Yizhou Gu, Haojie Xu   +18 more
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Probing cosmic voids with emission-line galaxies

Frontiers in Astronomy and Space Sciences
IntroductionWe aim to provide forecasts for future line intensity mapping (LIM) observations and galaxy redshift surveys, focusing on the physical properties of low-density region of the cosmic web (voids).
Yuka Yamada, Naoki Yoshida, Naoki Yoshida   +2 more
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