Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Wolfram Kollatschny"'
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:
Laurel H. Weiss, Dustin Davis, Karl Gebhardt, Simon Gazagnes, Mahan Mirza Khanlari, Erin Mentuch Cooper, John Chisholm, Danielle Berg, William P. Bowman, Chris Byrohl, Robin Ciardullo, Maximilian Fabricius, Daniel Farrow, Caryl Gronwall, Gary J. Hill, Lindsay R. House, Donghui Jeong, Hasti Khoraminezhad, Wolfram Kollatschny, Eiichiro Komatsu, Maja Lujan Niemeyer, Shun Saito, Donald P. Schneider, Gregory R. Zeimann
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 2, p 102 (2024)
The Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) is designed to detect and measure the redshifts of more than 1 million Ly α emitting galaxies (LAEs) 1.88 < z < 3.52. In addition to its cosmological measurements, these data enable studie
Externí odkaz:
https://doaj.org/article/f77a20615e1d4414a60790d841bf920d
Autor:
Chenxu Liu, Xinlei Chen, Xinzhong Er, Gregory R. Zeimann, József Vinkó, J. Craig Wheeler, Erin Mentuch Cooper, Dustin Davis, Daniel J. Farrow, Karl Gebhardt, Helong Guo, Gary J. Hill, Lindsay House, Wolfram Kollatschny, Fanchuan Kong, Brajesh Kumar, Xiangkun Liu, Sarah Tuttle, Michael Endl, Parker Duke, William D. Cochran, Jinghua Zhang, Xiaowei Liu
Publikováno v:
The Astrophysical Journal Letters, Vol 958, Iss 2, p L37 (2023)
Supernova (SN) 2023ixf was discovered on 2023 May 19. The host galaxy, M101, was observed by the Hobby–Eberly Telescope Dark Energy Experiment collaboration over the period 2020 April 30–2020 July 10, using the Visible Integral-field Replicable U
Externí odkaz:
https://doaj.org/article/ee2eeba48e844333986348ccdb53fd31
Autor:
Sean D. Johnson, Joop Schaye, Gregory L. Walth, Jennifer I-Hsiu Li, Gwen C. Rudie, Hsiao-Wen Chen, Mandy C. Chen, Benoît Epinat, Massimo Gaspari, Sebastiano Cantalupo, Wolfram Kollatschny, Zhuoqi (Will) Liu, Sowgat Muzahid
Publikováno v:
The Astrophysical Journal Letters, Vol 940, Iss 2, p L40 (2022)
We report the discovery of giant (50−100 kpc) [O ii ] emitting nebulae with MUSE in the field of TXS 0206−048, a luminous quasar at z = 1.13. “Down-the-barrel” UV spectra of the quasar show absorption at velocities coincident with those of th
Externí odkaz:
https://doaj.org/article/cad2165c130f47458d058107792722b2
Autor:
Dustin Davis, Karl Gebhardt, Erin Mentuch Cooper, William P. Bowman, Barbara Garcia Castanheira, John Chisholm, Robin Ciardullo, Maximilian Fabricius, Daniel J. Farrow, Steven L. Finkelstein, Caryl Gronwall, Eric Gawiser, Gary J. Hill, Ulrich Hopp, Lindsay R. House, Donghui Jeong, Wolfram Kollatschny, Eiichiro Komatsu, Chenxu Liu, Maja Lujan Niemeyer, Alberto Saldana-Lopez, Shun Saito, Donald P. Schneider, Jan Snigula, Sarah Tuttle, Laurel H. Weiss, Lutz Wisotzki, Gregory Zeimann
Publikováno v:
The Astrophysical Journal, Vol 954, Iss 2, p 209 (2023)
We describe the ensemble properties of the 1.9 < z < 3.5 Lyman alpha emitters (LAEs) found in the HETDEX survey’s first public data release, HETDEX Public Source Catalog 1. Stacking the low-resolution ( R ∼ 800) spectra greatly increases the sign
Externí odkaz:
https://doaj.org/article/c24f9931f6d4441fa336865fd9aadfd9
Autor:
Yechi Zhang, Masami Ouchi, Karl Gebhardt, Chenxu Liu, Yuichi Harikane, Erin Mentuch Cooper, Dustin Davis, Daniel J. Farrow, Eric Gawiser, Gary J. Hill, Wolfram Kollatschny, Yoshiaki Ono, Donald P. Schneider, Steven L. Finkelstein, Caryl Gronwall, Shardha Jogee, Mirko Krumpe
Publikováno v:
The Astrophysical Journal, Vol 948, Iss 2, p 103 (2023)
We investigate the stellar mass–black hole mass ( ${{ \mathcal M }}_{* }\mbox{--}{{ \mathcal M }}_{\mathrm{BH}}$ ) relation with type 1 active galactic nuclei (AGNs) down to ${{ \mathcal M }}_{\mathrm{BH}}={10}^{7\,}{M}_{\odot }$ , corresponding to
Externí odkaz:
https://doaj.org/article/56fc0b15a0144cf8b713dff1595c7c02
Autor:
Erin Mentuch Cooper, Karl Gebhardt, Dustin Davis, Daniel J. Farrow, Chenxu Liu, Gregory Zeimann, Robin Ciardullo, John J. Feldmeier, Niv Drory, Donghui Jeong, Barbara Benda, William P. Bowman, Michael Boylan-Kolchin, Óscar A. Chávez Ortiz, Maya H. Debski, Mona Dentler, Maximilian Fabricius, Rameen Farooq, Steven L. Finkelstein, Eric Gawiser, Caryl Gronwall, Gary J. Hill, Ulrich Hopp, Lindsay R. House, Steven Janowiecki, Hasti Khoraminezhad, Wolfram Kollatschny, Eiichiro Komatsu, Martin Landriau, Maja Lujan Niemeyer, Hanshin Lee, Phillip MacQueen, Ken Mawatari, Brianna McKay, Masami Ouchi, Jennifer Poppe, Shun Saito, Donald P. Schneider, Jan Snigula, Benjamin P. Thomas, Sarah Tuttle, Tanya Urrutia, Laurel Weiss, Lutz Wisotzki, Yechi Zhang, The HETDEX collaboration
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 2, p 177 (2023)
We present the first publicly released catalog of sources obtained from the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). HETDEX is an integral field spectroscopic survey designed to measure the Hubble expansion parameter and angular diamet
Externí odkaz:
https://doaj.org/article/439248c120d34176bd1145fb5007246d
Autor:
József Vinkó, Benjamin P. Thomas, J. Craig Wheeler, Anna Y. Q. Ho, Erin Mentuch Cooper, Karl Gebhardt, Robin Ciardullo, Daniel J. Farrow, Gary J. Hill, Zoltán Jäger, Wolfram Kollatschny, Chenxu Liu, Enikő Regős, Krisztián Sárneczky
Publikováno v:
The Astrophysical Journal, Vol 946, Iss 1, p 31 (2023)
We have extracted 636 spectra taken at the positions of 583 transient sources from the third data release of the Hobby–Eberly Telescope Dark Energy eXperiment (HETDEX). The transients were discovered by the Zwicky Transient Facility (ZTF) during 20
Externí odkaz:
https://doaj.org/article/73be9995b34945549c8156eeec18accf
Autor:
Dustin Davis, Karl Gebhardt, Erin Mentuch Cooper, Robin Ciardullo, Maximilian Fabricius, Daniel J. Farrow, John J. Feldmeier, Steven L. Finkelstein, Eric Gawiser, Caryl Gronwall, Gary J. Hill, Ulrich Hopp, Lindsay R. House, Donghui Jeong, Wolfram Kollatschny, Eiichiro Komatsu, Martin Landriau, Chenxu Liu, Shun Saito, Sarah Tuttle, Isak G. B. Wold, Gregory R. Zeimann, Yechi Zhang
Publikováno v:
The Astrophysical Journal, Vol 946, Iss 2, p 86 (2023)
The Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) is an untargeted spectroscopic survey that aims to measure the expansion rate of the universe at z ∼ 2.4 to 1% precision for both H ( z ) and D _A ( z ). HETDEX is in the process of mappi
Externí odkaz:
https://doaj.org/article/728db0d51dc34dc0b1eb21d25605c0c9
Autor:
Dragana Ilić, Alla I. Shapovalova, Luka Č. Popović, Vahram Chavushyan, Alexander N. Burenkov, Wolfram Kollatschny, Andjelka Kovačević, Sladjana Marčeta-Mandić, Nemanja Rakić, Giovanni La Mura, Piero Rafanelli
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 4 (2017)
We present the results of the long-term optical monitoring campaign of active galactic nuclei (AGN) coordinated by the Special Astrophysical Observatory of the Russian Academy of Science. This campaign has produced a remarkable set of optical spectra
Externí odkaz:
https://doaj.org/article/5ab2e178bdd648b58c9de6d5cd4c459e