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We present results of VLT/FORS2 spectroscopy of galaxies at z~3 in the Hubble Deep Field-South (HDF-S). A sample of galaxies was drawn from the photo-z catalogue based on the HST/WFPC2 optical images and the deep near-infrared images…

天体物理学 · 物理学 2009-11-11 I. Iwata , A. K. Inoue , D. Burgarella

We present results from a blind, spectroscopic survey for redshift ~5.7 Lyman-alpha-emitting galaxies using the Inamori Magellan Areal Camera and Spectrograph. A total of ~200 square arcminutes were observed in the COSMOS and LCIRS fields…

天体物理学 · 物理学 2009-11-13 Crystal L. Martin , Marcin Sawicki , Alan Dressler , Pat McCarthy

We use a dense, complete redshift survey, the Smithsonian Hectospec Lensing Survey (SHELS), covering a 4 square degree region of a deep imaging survey, the Deep Lens Survey (DLS), to study the optical spectral properties of Wide-field…

宇宙学与河外天体物理 · 物理学 2015-06-11 Ho Seong Hwang , Margaret J. Geller , Michael J. Kurtz , Ian P. Dell'Antonio , Daniel G. Fabricant

We present results from near-infrared spectroscopy of 26 emission-line galaxies at z ~ 2 obtained with the FIRE spectrometer on the Magellan Baade telescope. The sample was selected from the WISP survey, which uses the near-infrared grism…

We selected 27244 nearby, red, giant early-type galaxies (RGEs) from the Sloan Digital Sky Survey (SDSS). In a large fraction (53%) of their spectra the [O III] emission line is detected, with an equivalent width (EW) distribution strongly…

宇宙学与河外天体物理 · 物理学 2015-05-27 Alessandro Capetti , Ranieri D. Baldi

We present the Cosmic Evolution Early Release Science (CEERS) Survey, a 77.2 hour Director's Discretionary Early Release Science Program. CEERS demonstrates, tests, and validates efficient extragalactic surveys using coordinated,…

星系天体物理 · 物理学 2025-01-09 Steven L. Finkelstein , Micaela B. Bagley , Pablo Arrabal Haro , Mark Dickinson , Henry C. Ferguson , Jeyhan S. Kartaltepe , Dale D. Kocevski , Anton M. Koekemoer , Jennifer M. Lotz , Casey Papovich , Pablo G. Perez-Gonzalez , Nor Pirzkal , Rachel S. Somerville , Jonathan R. Trump , Guang Yang , L. Y. Aaron Yung , Adriano Fontana , Andrea Grazian , Norman A. Grogin , Lisa J. Kewley , Allison Kirkpatrick , Rebecca L. Larson , Laura Pentericci , Swara Ravindranath , Stephen M. Wilkins , Omar Almaini , Ricardo O. Amorin , Guillermo Barro , Rachana Bhatawdekar , Laura Bisigello , Madisyn Brooks , Fernando Buitrago , Antonello Calabro , Marco Castellano , Yingjie Cheng , Nikko J. Cleri , Justin W. Cole , M. C. Cooper , Olivia R. Cooper , Luca Costantin , Isa G. Cox , Darren Croton , Emanuele Daddi , Kelcey Davis , Avishai Dekel , David Elbaz , Vital Fernandez , Seiji Fujimoto , Giovanni Gandolfi , Jonathan P. Gardner , Eric Gawiser , Mauro Giavalisco , Carlos Gomez-Guijarro , Yuchen Guo , Ansh R. Gupta , Nimish P. Hathi , Santosh Harish , Aurelien Henry , Michaela Hirschmann , Weida Hu , Taylor A. Hutchison , Kartheik G. Iyer , Anne E. Jaskot , Saurabh W. Jha , Intae Jung , Vasily Kokorev , Peter Kurczynski , Gene C. K. Leung , Mario Llerena , Arianna S. Long , Ray A. Lucas , Shiying Lu , Elizabeth J. McGrath , Daniel H. McIntosh , Emiliano Merlin , Alexa M. Morales , Lorenzo Napolitano , Fabio Pacucci , Viraj Pandya , Marc Rafelski , Giulia Rodighiero , Caitlin Rose , Paola Santini , Lise-Marie Seille , Raymond C. Simons , Lu Shen , Amber N. Straughn , Sandro Tacchella , Brittany N. Vanderhoof , Jesus Vega-Ferrero , Benjamin J. Weiner , Christopher N. A. Willmer , Peixin Zhu , Eric F. Bell , Stijn Wuyts , Benne W. Holwerda , Xin Wang , Weichen Wang , Jorge A. Zavala

We present a spectroscopic study of 51 compact field galaxies with redshifts z < 1.4 and apparent magnitudes I < 23.74 in the flanking fields of the Hubble Deep Field. These galaxies are compact in the sense that they have small apparent…

We report statistically significant detection of H I 21-cm emission from intermediate-redshift ($z\approx0.2$-0.6) galaxies. By leveraging multi-sightline galaxy survey data from the Cosmic Ultraviolet Baryon Survey (CUBS) and deep radio…

We present a catalog of 25 definite and 11 probable strong galaxy-galaxy gravitational lens systems with redshifts 0.4 \lesssim z \lesssim 0.7, discovered spectroscopically by the presence of higher redshift emission-lines within the Baryon…

We present the results of a search for emission-line galaxies (ELGs) towards nearby voids, based on a sample selected on the HQS (Hamburg Quasar Survey) - III-aJ objective-prism plates. The survey was based on the presence of emission-lines…

天体物理学 · 物理学 2016-08-30 Cristina C. Popescu , Ulrich Hopp , Hans Elsässer

We report the results of a deep 3D imaging survey of the Hubble Deep Field North using the Taurus Tunable Filter and the William Herschel Telescope. This survey was designed to search for new line emitting populations of objects missed by…

天体物理学 · 物理学 2009-11-10 Karl Glazebrook , Jeffrey Tober , Scott Thomson , Joss Bland-Hawthorn , Roberto Abraham

Euclid and the Roman Space Telescope (Roman) will soon use grism spectroscopy to detect millions of galaxies via H$\alpha$ and [O III] $\lambda 5007$ emission. To better constrain the expected galaxy counts from these instruments, we use a…

星系天体物理 · 物理学 2023-01-25 Gautam Nagaraj , Robin Ciardullo , William P. Bowman , Alex Lawson , Caryl Gronwall

We present the redshift evolution of the radial surface brightness (SB) profile of the rest-frame UV and optical stellar continua for 9119 Lya emitters (LAEs) at z~0-8 and 0-2, respectively. Using Hubble Space Telescope data and the LAE…

星系天体物理 · 物理学 2020-02-12 Takatoshi Shibuya , Masami Ouchi , Yuichi Harikane , Kimihiko Nakajima

We present the intrinsic and observed sizes of galaxies at $z\geq5$ in the First Light And Reionisation Epoch Simulations (FLARES). We employ the large effective volume of FLARES to produce a sizeable sample of high redshift galaxies with…

Using a simple two-color selection based on $g$-, $z$-, and $K$-band photometry, we pick out 1609 star-forming galaxies (sgzKs) and 422 passively evolving galaxies (pgzKs) at z\sim2$ from a $K$-band-selected sample ($K_{\rm AB} < 22.0$) in…

宇宙学与河外天体物理 · 物理学 2015-06-04 Guanwen Fang , Xu Kong , Yang Chen , Xuanbin Lin

We present an analysis of deep $\textit{JWST}$/NIRSpec spectra of star-forming galaxies at $z\simeq1.4-10$, observed as part of the AURORA survey. We infer median low-ionization electron densities of $268_{-49}^{+45}~\rm cm^{-3}$,…

We present a study of the morphology and intensity of star formation in the host galaxies of eight Palomar-Green quasars using observations with the Hubble Space Telescope. Our observations are motivated by recent evidence for a close…

宇宙学与河外天体物理 · 物理学 2015-06-17 J. E. Young , M. Eracleous , O. Shemmer , H. Netzer , C. Gronwall , Dieter Lutz , R. Ciardullo , Eckhard Sturm

[Abridged] We develop a simple star formation model whose goal is to interpret the emerging body of observational data on star-forming galaxies at z>~6. The efficiency and duty cycle of the star formation activity within dark matter halos…

天体物理学 · 物理学 2009-11-13 Daniel P. Stark , Abraham Loeb , Richard S. Ellis

We present the sixth list with results of the Hamburg/SAO Survey for Emission-Line Galaxies. The final list resulted from follow-up spectroscopy conducted with the 4.5m MMT telescope in 1996, and with 2.2m CAHA and 6m SAO telescopes in 2000…

Using deep narrow-band (NB) imaging and optical spectroscopy from the Keck telescope and MMT, we identify a sample of 20 emission-line galaxies (ELGs) at z=0.065-0.90 where the weak auroral emission line, [OIII]4363, is detected at…

宇宙学与河外天体物理 · 物理学 2015-06-16 Chun Ly , Matthew A. Malkan , Tohru Nagao , Nobunari Kashikawa , Kazuhiro Shimasaku , Masao Hayashi