Zobrazeno 1 - 10
of 320
pro vyhledávání: '"Patrick Petitjean"'
Autor:
Zhijie Qu, Hsiao-Wen Chen, Sean D. Johnson, Gwen C. Rudie, Fakhri S. Zahedy, David DePalma, Joop Schaye, Erin T. Boettcher, Sebastiano Cantalupo, Mandy C. Chen, Claude-André Faucher-Giguère, Jennifer I-Hsiu Li, John S. Mulchaey, Patrick Petitjean, Marc Rafelski
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 1, p 8 (2024)
This paper presents a newly established sample of 103 unique galaxies or galaxy groups at 0.4 ≲ z ≲ 0.7 from the Cosmic Ultraviolet Baryon Survey (CUBS) for studying the warm-hot circumgalactic medium (CGM) probed by both O vi and Ne viii absorpt
Externí odkaz:
https://doaj.org/article/1bd7a8878d0544d7a09f4d841aaad26e
Autor:
Yue Shen, Catherine J. Grier, Keith Horne, Zachary Stone, Jennifer I. Li, Qian Yang, Yasaman Homayouni, Jonathan R. Trump, Scott F. Anderson, W. N. Brandt, Patrick B. Hall, Luis C. Ho, Linhua Jiang, Patrick Petitjean, Donald P. Schneider, Charling Tao, Fergus. R. Donnan, Yusra AlSayyad, Matthew A. Bershady, Michael R. Blanton, Dmitry Bizyaev, Kevin Bundy, Yuguang Chen, Megan C. Davis, Kyle Dawson, Xiaohui Fan, Jenny E. Greene, Hannes Gröller, Yucheng Guo, Héctor Ibarra-Medel, Yuanzhe Jiang, Ryan P. Keenan, Juna A. Kollmeier, Cassandra Lejoly, Zefeng Li, Axel de la Macorra, Maxwell Moe, Jundan Nie, Graziano Rossi, Paul S. Smith, Wei Leong Tee, Anne-Marie Weijmans, Jiachuan Xu, Minghao Yue, Xu Zhou, Zhimin Zhou, Hu Zou
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 272, Iss 2, p 26 (2024)
We present the final data from the Sloan Digital Sky Survey (SDSS) Reverberation Mapping (RM) project, a precursor to the SDSS-V Black Hole Mapper RM program. This data set includes 11 yr photometric and 7 yr spectroscopic light curves for 849 broad-
Externí odkaz:
https://doaj.org/article/6d791eb279de4413b8eae4a884dd70d2
Autor:
Sean D. Johnson, Zhuoqi (Will) Liu, Jennifer I-Hsiu Li, Joop Schaye, Jenny E. Greene, Sebastiano Cantalupo, Gwen C. Rudie, Zhijie Qu, Hsiao-Wen Chen, Marc Rafelski, Sowgat Muzahid, Mandy C. Chen, Thierry Contini, Wolfram Kollatschny, Nishant Mishra, Patrick Petitjean, Michael Rauch, Fakhri S. Zahedy
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 218 (2024)
We report the discovery of large, ionized, [O ii ]-emitting circumgalactic nebulae around the majority of 30 UV-luminous quasars at z = 0.4–1.4 observed with deep, wide-field integral field spectroscopy with the Multi-Unit Spectroscopy Explorer (MU
Externí odkaz:
https://doaj.org/article/a8fa691872b44ff7bf3aa1c69fbe0946
Autor:
Jennifer I-Hsiu Li, Sean D. Johnson, Erin Boettcher, Sebastiano Cantalupo, Hsiao-Wen Chen, Mandy C. Chen, David R. DePalma, Zhuoqi (Will) Liu, Nishant Mishra, Patrick Petitjean, Zhijie Qu, Gwen C. Rudie, Joop Schaye, Fakhri S. Zahedy
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 2, p 143 (2024)
We investigate the group-scale environment of 15 luminous quasars (luminosity L _3000 > 10 ^46 erg s ^−1 ) from the Cosmic Ultraviolet Baryon Survey (CUBS) at redshift z ≈ 1. Using the Multi Unit Spectroscopic Explorer integral field spectrograph
Externí odkaz:
https://doaj.org/article/e72783ecc2704987a7c0f347b4a3d640
Autor:
Kimberly L. Emig, Neeraj Gupta, Pedro Salas, Sébastien Muller, Sergei A. Balashev, Françoise Combes, Emmanuel Momjian, Yiqing Song, Preshanth Jagannathan, Partha P. Deka, Gyula I. G. Józsa, Hans-Rainer Klöckner, Abhisek Mohapatra, Pasquier Noterdaeme, Patrick Petitjean, Raghunathan Srianand, Jonah D. Wagenveld
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 1, p 93 (2023)
We report the detection of stimulated hydrogen radio recombination line (RRL) emission from ionized gas in a z = 0.89 galaxy using 580–1670 MHz observations from the MeerKAT Absorption Line Survey. The RRL emission originates in a galaxy that inter
Externí odkaz:
https://doaj.org/article/dff2b672dd214e729b88cd7fc8fb9a10
Autor:
Patrick Petitjean
Publikováno v:
Boletim do Museu Paraense Emílio Goeldi. Ciências Humanas, Vol 4, Iss 3, Pp 437-452 (2009)
When United Nations Educational, Scientific and Cultural Organization (UNESCO) was established by the end of 1945, Joseph Needham (1900-1995) and some progressive scientists were recruited to build the Natural Sciences Department. Needham was support
Externí odkaz:
https://doaj.org/article/d9aaff5ff4174a2ba1421ca44c9ea190
Autor:
Patrick Petitjean
Publikováno v:
Boletim do Museu Paraense Emílio Goeldi. Ciências Humanas, Vol 4, Iss 3, Pp 437-452
Lors de la constitution de l'United Nations Educational, Scientific and Cultural Organization (UNESCO) à la fin de 1945, il a été fait appel à Joseph Needham (1900-1995) et à des scientifiques progressistes pour mettre en place le Département d
Externí odkaz:
https://doaj.org/article/eee3e572fdcb4930a0e6270bfdd0251b
Autor:
Labanya Kumar Guha, Raghunathan Srianand, Rajeshwari Dutta, Ravi Joshi, Pasquier Noterdaeme, Patrick Petitjean
Publikováno v:
Monthly Notices of the Royal Astronomical Society
From a sample of 109 candidate Ultra-Strong Mg II (USMgII; having rest equivalent width of Mg II absorption, $W_{2796}>3.0$ Angstrom) systems at z=0.4-0.6, we confirm 27 and identify host galaxies of 20 systems based on associated nebular line emissi
Autor:
Gitika Shukla, Raghunathan Srianand, Neeraj Gupta, Patrick Petitjean, Andrew J Baker, Jens-Kristian Krogager, Pasquier Noterdaeme
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 510:786-806
We use Southern African Large Telescope (SALT) to perform long-slit spectroscopic observations of 23 newly discovered radio-loud quasars (RLQs) at $2.7$1000 km/s in all, except one). Using the samples of high-$z$ radio-loud quasars and galaxies from
Autor:
Annalisa De Cia, Edward B. Jenkins, Andrew J. Fox, Cédric Ledoux, Tanita Ramburuth-Hurt, Christina Konstantopoulou, Patrick Petitjean, Jens-Kristian Krogager
Publikováno v:
Nature. 605(7910)