Zobrazeno 1 - 10
of 1 356
pro vyhledávání: '"Redshift surveys"'
Autor:
Yao-Yuan Mao, Marla Geha, Risa H. Wechsler, Yasmeen Asali, Yunchong Wang, Erin Kado-Fong, Nitya Kallivayalil, Ethan O. Nadler, Erik J. Tollerud, Benjamin Weiner, Mithi A. C. de los Reyes, John F. Wu
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 1, p 117 (2024)
We present Data Release 3 (DR3) of the Satellites Around Galactic Analogs (SAGA) Survey, a spectroscopic survey characterizing satellite galaxies around Milky Way (MW)-mass galaxies. The SAGA Survey DR3 includes 378 satellites identified across 101 M
Externí odkaz:
https://doaj.org/article/de8097bfac5d4546a671b71c3f249003
Autor:
Maayane T. Soumagnac, Peter Nugent, Robert A. Knop, Anna Y. Q. Ho, William Hohensee, Autumn Awbrey, Alexis Andersen, Greg Aldering, Matan Ventura, Jessica N. Aguilar, Steven Ahlen, Segev Y. Benzvi, David Brooks, Dillon Brout, Todd Claybaugh, Tamara M. Davis, Kyle Dawson, Axel de la Macorra, Arjun Dey, Biprateep Dey, Peter Doel, Kelly A. Douglass, Jaime E. Forero-Romero, Enrique Gaztañaga, Satya Gontcho A Gontcho, Or Graur, Julien Guy, ChangHoon Hahn, Klaus Honscheid, Cullan Howlett, Alex G. Kim, Theodore Kisner, Anthony Kremin, Andrew Lambert, Martin Landriau, Dustin Lang, Laurent Le Guillou, Marc Manera, Aaron Meisner, Ramon Miquel, John Moustakas, Adam D. Myers, Jundan Nie, Antonella Palmese, David Parkinson, Claire Poppett, Francisco Prada, Fei Qin, Mehdi Rezaie, Graziano Rossi, Eusebio Sanchez, David J. Schlegel, Michael Schubnell, Joseph H. Silber, Gregory Tarlé, Benjamin A. Weaver, Zhimin Zhou
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 275, Iss 2, p 22 (2024)
We present the Multi-Object Spectroscopy of Transient (MOST) Hosts survey. The survey is planned to run throughout the 5 yr of operation of the Dark Energy Spectroscopic Instrument (DESI) and will generate a spectroscopic catalog of the hosts of most
Externí odkaz:
https://doaj.org/article/a6f6e43e8a48470286b134f6330a8181
Publikováno v:
The Astronomical Journal, Vol 168, Iss 6, p 244 (2024)
Estimating photometric redshifts (photo- z ) of quasars is crucial for measuring cosmic distances and monitoring cosmic evolution. While numerous point estimation methods have successfully determined photo- z , they often struggle with the inherently
Externí odkaz:
https://doaj.org/article/0c1d8c322dce483fb0990a4e7e3d8ec0
Autor:
Prabhakar Tiwari, Dominik J. Schwarz, Gong-Bo Zhao, Ruth Durrer, Martin Kunz, Hamsa Padmanabhan
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 279 (2024)
We utilize the Sloan Digital Sky Survey (SDSS) extended Baryon Oscillation Spectroscopic Survey and Baryon Oscillation Spectroscopic Survey catalogs with precise spectroscopic redshifts to estimate the kinematic redshift dipole caused by the proper m
Externí odkaz:
https://doaj.org/article/918fadbbe8da4bf496d912e70aff2a7b
Autor:
Stephen Thorp, Justin Alsing, Hiranya V. Peiris, Sinan Deger, Daniel J. Mortlock, Boris Leistedt, Joel Leja, Arthur Loureiro
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 1, p 145 (2024)
We present an efficient Bayesian method for estimating individual photometric redshifts and galaxy properties under a pretrained population model ( pop-cosmos ) that was calibrated using purely photometric data. This model specifies a prior distribut
Externí odkaz:
https://doaj.org/article/a66b4be2443e426c8e8f00afe732ae37
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 1, p 95 (2024)
The structure of the low redshift Universe is dominated by a multiscale void distribution delineated by filaments and walls of galaxies. The characteristics of voids, such as morphology, average density profile, and correlation function, can be used
Externí odkaz:
https://doaj.org/article/93316354ac394fb3a34174cc45cfe47e
Autor:
Jun-Young Lee, Ji-hoon Kim, Minyong Jung, Boon Kiat Oh, Yongseok Jo, Songyoun Park, Jaehyun Lee, Yuan-Sen Ting, Ho Seong Hwang
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 1, p 38 (2024)
We present a proof-of-concept simulation-based inference on Ω _m and σ _8 from the Sloan Digital Sky Survey (SDSS) Baryon Oscillation Spectroscopic Survey (BOSS) LOWZ Northern Galactic Cap (NGC) catalog using neural networks and domain generalizati
Externí odkaz:
https://doaj.org/article/6e650d458a0f46668591b6d495b21295
Autor:
Rachel Bezanson, Ivo Labbe, Katherine E. Whitaker, Joel Leja, Sedona H. Price, Marijn Franx, Gabriel Brammer, Danilo Marchesini, Adi Zitrin, Bingjie Wang, John R. Weaver, Lukas J. Furtak, Hakim Atek, Dan Coe, Sam E. Cutler, Pratika Dayal, Pieter van Dokkum, Robert Feldmann, Natascha M. Förster Schreiber, Seiji Fujimoto, Marla Geha, Karl Glazebrook, Anna de Graaff, Jenny E. Greene, Stéphanie Juneau, Susan Kassin, Mariska Kriek, Gourav Khullar, Michael Maseda, Lamiya A. Mowla, Adam Muzzin, Themiya Nanayakkara, Erica J. Nelson, Pascal A. Oesch, Camilla Pacifici, Richard Pan, Casey Papovich, David J. Setton, Alice E. Shapley, Renske Smit, Mauro Stefanon, Edward N. Taylor, Christina C. Williams
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 92 (2024)
In this paper we describe the survey design for the Ultradeep NIRSpec and NIRCam Observations before the Epoch of Reionization (UNCOVER) Cycle 1 JWST Treasury program, which executed its early imaging component in 2022 November. The UNCOVER survey in
Externí odkaz:
https://doaj.org/article/801022b6babd4a78b5a6e570c37d81d3
Autor:
Ilya S. Khrykin, Metin Ata, Khee-Gan Lee, Sunil Simha, Yuxin Huang, J. Xavier Prochaska, Nicolas Tejos, Keith W. Bannister, Jeff Cooke, Cherie K. Day, Adam Deller, Marcin Glowacki, Alexa C. Gordon, Clancy W. James, Lachlan Marnoch, Ryan. M. Shannon, Jielai Zhang, Lucas Bernales-Cortes
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 151 (2024)
The dispersion measure of fast radio bursts (FRBs), arising from the interactions with free electrons along the propagation path, constitutes a unique probe of the cosmic baryon distribution. Their constraining power is further enhanced in combinatio
Externí odkaz:
https://doaj.org/article/6f8966a67c6b42b59b25481872b79dca
Autor:
Justin Alsing, Stephen Thorp, Sinan Deger, Hiranya V. Peiris, Boris Leistedt, Daniel Mortlock, Joel Leja
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 274, Iss 1, p 12 (2024)
We present pop-cosmos : a comprehensive model characterizing the galaxy population, calibrated to 140,938 ( r < 25 selected) galaxies from the Cosmic Evolution Survey (COSMOS) with photometry in 26 bands from the ultraviolet to the infrared. We const
Externí odkaz:
https://doaj.org/article/f12d13db44174f52afa68eb4276fd1d6