Results 101 to 110 of about 64,703 (265)

The Universe SPHEREx Will See: Empirically Based Galaxy Simulations and Redshift Predictions

The Astrophysical Journal
We simulate galaxy properties and redshift estimation for SPHEREx, the next NASA Medium Class Explorer. To make robust models of the galaxy population and test the spectrophotometric redshift performance for SPHEREx, we develop a set of synthetic ...
Richard M. Feder, Daniel C. Masters, Bomee Lee, James J. Bock, Yi-Kuan Chiang, Ami Choi, Olivier Doré, Shoubaneh Hemmati, Olivier Ilbert   +8 more
doaj   +1 more source

Compact Stellar Systems around NGC 1399

, 2007
We have obtained spectroscopic redshifts of colour-selected point sources in four wide area VLT-FLAMES fields around the Fornax Cluster giant elliptical galaxy NGC 1399, identifying as cluster members 30 previously unknown faint (-10 ...
A. M. Karick, Barmby, Bassino, Bassino, Bassino, Bekki, Bekki, Bekki, Belokurov, Bergond, Bergond, Bertin, Binney, Blakeslee, Brodie, Carretta, De Propris, Dirsch, Dirsch, Drinkwater, Drinkwater, Drinkwater, Drinkwater, E. A. Evstigneeva, Fellhauer, Ferguson, Forbes, Forte, Georgiev, Haşegan, Hilker, Hilker, J. B. Jones, Jacoby, Jones, Karick, Kissler-Patig, Kravtsov, M. D. Gregg, M. J. Drinkwater, Maraston, Mieske, Mieske, Mieske, Moore, Moore, P. Firth, Padmanabhan, Paturel, Phillipps, Press, Richtler, Richtler, Richtler, S. Phillipps, Schuberth, Stetson, Tonry, West   +58 more
core   +2 more sources

Spectroscopy from Photometry: A Population of Extreme Emission Line Galaxies at 1.7 ≲ z ≲ 6.7 Selected with JWST Medium Band Filters [PDF]

, 2023
Sunna Withers, Adam Muzzin, Swara Ravindranath, Ghassan T. E. Sarrouh, Roberto Abraham, Yoshihisa Asada, Maruša Bradač, Gabriel Brammer, G. Desprez, Kartheik G. Iyer, Nicholas S. Martis, Lamiya Mowla, Gaël Noirot, Marcin Sawicki, Victoria Strait, Chris J. Willott   +15 more
openalex   +1 more source

RUBIES Spectroscopically Confirms the High Number Density of Quiescent Galaxies from 2 < z< 5

The Astrophysical Journal
We present the number density of massive ( ${\mathrm{log}}({M}_{* }/{M}_{\odot })\gt 10.3$ ) quiescent galaxies at 2 
Yunchong Zhang, Anna de Graaff, David J. Setton, Sedona H. Price, Rachel Bezanson, Claudia del P. Lagos, Sam E. Cutler, Ian McConachie, Nikko J. Cleri, Olivia R. Cooper, Rashmi Gottumukkala, Jenny E. Greene, Michaela Hirschmann, Gourav Khullar, Ivo Labbe, Joel Leja, Michael V. Maseda, Jorryt Matthee, Tim B. Miller, Themiya Nanayakkara, Katherine A. Suess, Bingjie Wang, Katherine E. Whitaker, Christina C. Williams   +23 more
doaj   +1 more source

Star–galaxy classification in deep LSST data with random forest

Astronomy & Astrophysics
Context. The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will produce unprecedentedly deep and wide photometric catalogues, enabling transformative studies of faint stellar systems such as the research of ultra-faint dwarf (UFD ...
Gatto M., Ripepi V., Bellazzini M., Tortora C., Dall’Ora M.   +4 more
doaj   +1 more source

Estimating Luminosities and Stellar Masses of Galaxies Photometrically without Determining Redshifts

, 2014
Large direct-imaging surveys usually use a template-fitting technique to estimate photometric redshifts for galaxies, which are then applied to derive important galaxy properties such as luminosities and stellar masses.
Hsieh, B. C., Yee, H. K. C.
core   +1 more source

Evolution of mid-infrared galaxy luminosity functions from the entireAKARINEP deep field with new CFHT photometry [PDF]

, 2015
Tomotsugu Goto, Nagisa Oi, Youichi Ohyama, Matthew A. Malkan, Hideo Matsuhara, Takehiko Wada, Marios Karouzos, Myungshin Im, Takao Nakagawa, V. Buat, D. Burgarella, Chris Sedgwick, Yoshiki Toba, Woong-Seob Jeong, L. Marchetti, K. Małek, E. Koptelova, D. C.-Y. Chao, Yi-Han Wu, Chris Pearson, Toshinobu Takagi, Hyung Mok Lee, S. Serjeant, Tsutomu T. Takeuchi, Seong Jin Kim   +24 more
openalex   +1 more source

PGC 0029664-1188757: PHOTOMETRY OF TWO INTERACTING GALAXIES AND THEIR DEBRIS [PDF]

, 2010
Elías Lira, Gaspar Galaz
openalex   +1 more source

Photometric Completeness Modelled with Neural Networks

The Astronomical Journal
In almost any study involving optical/near-infrared photometry, understanding the completeness of detection and recovery is an essential part of the work.
William E. Harris, Joshua S. Speagle
doaj   +1 more source

From Halos to Galaxies. X. Decoding Galaxy SEDs with Physical Priors and Accurate Star Formation History Reconstruction

The Astrophysical Journal
The spectral energy distribution (SED) of galaxies is essential for deriving fundamental properties like stellar mass and star formation history (SFH). However, conventional methods, including both parametric and nonparametric approaches, often fail to ...
Zeyu Gao, Yingjie Peng, Kai Wang, Luis C. Ho, Alvio Renzini, Anna R. Gallazzi, Filippo Mannucci, Houjun Mo, Yipeng Jing, Xiaohu Yang, Enci Wang, Dingyi Zhao, Jing Dou, Qiusheng Gu, Cheqiu Lyu, Roberto Maiolino, Bitao Wang, Yu-Chen Wang, Bingxiao Xu, Feng Yuan, Xingye Zhu   +20 more
doaj   +1 more source