Results 131 to 140 of about 68,770 (231)

A Massive Quiescent Galaxy in a Group Environment at z = 4.53

The Astrophysical Journal
We report on the spectroscopic confirmation of a massive quiescent galaxy at z _spec = 4.53 in the COSMOS field. The object was first identified as a galaxy with suppressed star formation at z _phot ∼ 4.65 from the COSMOS2020 catalog.
Takumi Kakimoto, Masayuki Tanaka, Masato Onodera, Rhythm Shimakawa, Po-Feng Wu, Katriona M. L. Gould, Kei Ito, Shuowen Jin, Mariko Kubo, Tomoko L. Suzuki, Sune Toft, Francesco Valentino, Kiyoto Yabe   +12 more
doaj   +1 more source

Near infrared spectroscopy of galaxies

, 1989
Imperial Users ...
Prestwich, Andrea Heather, Prestwich, Andrea Heather   +1 more
openaire   +1 more source

Morphology and Kinematics of the Gas in M51: How Interaction with NGC 5195 Has Molded the Structure of Its Arms

The Astrophysical Journal
The Whirlpool Galaxy is a well-studied grand design galaxy with two major spiral arms, and a large satellite NGC 5195. The arms both show long uniform sections with perturbations (“kinks” or sharp turns) in specific regions.
Joan Font, John E. Beckman, Benoît Epinat, Clare L. Dobbs, Miguel Querejeta   +4 more
doaj   +1 more source

Star Formation at the Epoch of Reionization with CANUCS: The Ages of Stellar Populations in MACS1149-JD1

The Astrophysical Journal Letters
We present measurements of stellar populations properties of a z = 9.1 gravitationally lensed galaxy MACS1149-JD1 using deep James Webb Space Telescope NIRISS slitless spectroscopy as well as NIRISS and NIRCam imaging from the CAnadian NIRISS Unbiased ...
Maruša Bradač, Victoria Strait, Lamiya Mowla, Kartheik G. Iyer, Gaël Noirot, Chris Willott, Gabe Brammer, Roberto Abraham, Yoshihisa Asada, Guillaume Desprez, Vince Estrada-Carpenter, Anishya Harshan, Nicholas S. Martis, Jasleen Matharu, Adam Muzzin, Gregor Rihtaršič, Ghassan T. E. Sarrouh, Marcin Sawicki   +17 more
doaj   +1 more source

X-ray Spectroscopy of Galaxy Clusters

, 2009
Galaxy clusters, the largest clearly defined objects in our Universe, are ideal laboratories to study in detail the cosmic evolution of the intergalactic intracluster medium (ICM) and the cluster galaxy population. For the ICM, which is heated to X-ray radiating temperatures, X-ray spectroscopy is the most important tool to obtain insight into the ...
Boehringer, Hans, Werner, Norbert
openaire   +2 more sources

RUBIES Reveals a Massive Quiescent Galaxy at z = 7.3

The Astrophysical Journal
We report the spectroscopic discovery of a massive quiescent galaxy at z _spec  = 7.29 ± 0.01, just  ∼700 Myr after the big bang. RUBIES-UDS-QG-z7 was selected from public JWST/NIRCam and MIRI imaging from the PRIMER survey and observed with JWST/NIRSpec
Andrea Weibel, Anna de Graaff, David J. Setton, Tim B. Miller, Pascal A. Oesch, Gabriel Brammer, Claudia D. P. Lagos, Katherine E. Whitaker, Christina C. Williams, Josephine F.W. Baggen, Rachel Bezanson, Leindert A. Boogaard, Nikko J. Cleri, Jenny E. Greene, Michaela Hirschmann, Raphael E. Hviding, Adarsh Kuruvanthodi, Ivo Labbé, Joel Leja, Michael V. Maseda, Jorryt Matthee, Ian McConachie, Rohan P. Naidu, Guido Roberts-Borsani, Daniel Schaerer, Katherine A. Suess, Francesco Valentino, Pieter van Dokkum, Bingjie Wang   +28 more
doaj   +1 more source

EFOSC2 Spectroscopy of SWIRE-CDFS Galaxies

, 2010
We present the optical spectra of a sample of 34 SWIRE-CDFS sources observed with EFOSC2 on the ESO 3.6m Telescope. We have used the spectra and spectroscopic redshifts to validate our photometric redshift codes and SED template fitting methods. 12 of our sources are Infrared Luminous Galaxies.
Kalfountzou, E., Trichas, M., Rowan-Robinson, M., Clements, D., Babbedge, T., Seiradakis, J.   +5 more
openaire   +2 more sources

The Star-forming Main Sequence in JADES and CEERS at z > 1.4: Investigating the Burstiness of Star Formation

The Astrophysical Journal
We have used public JWST/NIRSpec and JWST/NIRCam observations from the CEERS and JADES surveys in order to analyze the star-forming main sequence (SFMS) over the redshift range 1.4 ≤ z < 7.
Leonardo Clarke, Alice E. Shapley, Ryan L. Sanders, Michael W. Topping, Gabriel B. Brammer, Trinity Bento, Naveen A. Reddy, Emily Kehoe   +7 more
doaj   +1 more source

CANUCS/Technicolor Data Release 1: Imaging, Photometry, Slit Spectroscopy, and Stellar Population Parameters

The Astrophysical Journal Supplement Series
We present the first data release of the Canadian NIRISS Unbiased Cluster Survey (CANUCS), a JWST Cycle 1 GTO program targeting five lensing clusters and flanking fields in parallel (A370, MACS0416, MACS0417, MACS1149, and MACS1423; survey area ∼100 ...
Ghassan T. E. Sarrouh, Yoshihisa Asada, Nicholas S. Martis, Chris J. Willott, Kartheik G. Iyer, Gaël Noirot, Adam Muzzin, Marcin Sawicki, Gabriel Brammer, Guillaume Desprez, Gregor Rihtaršič, Johannes Zabl, Roberto Abraham, Maruša Bradač, René Doyon, Jacqueline Antwi-Danso, Samantha Berek, Westley Brown, Vince Estrada-Carpenter, Jeremy Favaro, Giordano Felicioni, Ben Forrest, Gaia Gaspar, Katriona M. L. Gould, Rachel Gledhill, Anishya Harshan, Nusrath Jahan, Naadiyah Jagga, Jon Judež, Danilo Marchesini, Vladan Markov, Jasleen Matharu, Shannon MacFarland, Maya Merchant, Rosa M. Mérida, Lamiya Mowla, Katherine Myers, Kiyoaki C. Omori, Camilla Pacifici, Swara Ravindranath, Luke Robbins, Victoria Strait, Visal Sok, Vivian Yun Yan Tan, Roberta Tripodi, Gillian Wilson, Sunna Withers   +46 more
doaj   +1 more source

Ruling out Conventional Photoionization Models in the Closest LINER, M31, with CFHT/SITELLE Observations

The Astrophysical Journal
The ionization mechanisms of low-ionization nuclear emission-line regions (LINERs), which are common in the local Universe, have been debated for decades.
Zongnan Li, Zhiyuan Li, Sumin Wang, Rubén García-Benito, Yifei Jin   +4 more
doaj   +1 more source