Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Bret D. Lehmer"'
Autor:
Helen R. Russell, Laura A. Lopez, Steven W. Allen, George Chartas, Prakriti Pal Choudhury, Renato A. Dupke, Andrew C. Fabian, Anthony M. Flores, Kristen Garofali, Edmund Hodges-Kluck, Michael J. Koss, Lauranne Lanz, Bret D. Lehmer, Jiang-Tao Li, W. Peter Maksym, Adam B. Mantz, Michael McDonald, Eric D. Miller, Richard F. Mushotzky, Yu Qiu, Christopher S. Reynolds, Francesco Tombesi, Paolo Tozzi, Anna Trindade-Falcão, Stephen A. Walker, Ka-Wah Wong, Mihoko Yukita, Congyao Zhang
Publikováno v:
Universe, Vol 10, Iss 7, p 273 (2024)
Stellar and black hole feedback heat and disperse surrounding cold gas clouds, launching gas flows off circumnuclear and galactic disks, producing a dynamic interstellar medium. On large scales bordering the cosmic web, feedback drives enriched gas o
Externí odkaz:
https://doaj.org/article/0bfd30ecf20c4ae6b9147ee79a4684bd
Autor:
Bret D. Lehmer, Kristen Garofali, Breanna A. Binder, Francesca Fornasini, Neven Vulic, Andreas Zezas, Ann Hornschemeier, Margaret Lazzarini, Hannah Moon, Toni Venters, Daniel Wik, Mihoko Yukita, Matteo Bachetti, Javier A. García, Brian Grefenstette, Kristin Madsen, Kaya Mori, Daniel Stern
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
We construct simulated galaxy data sets based on the High Energy X-ray Probe (HEX-P) mission concept to demonstrate the significant advances in galaxy science that will be yielded by the HEX-P observatory. The combination of high spatial resolution i
Externí odkaz:
https://doaj.org/article/ea6ff892a3784b9eb4699285b4c0d3bd
Autor:
Hannah Moon, Daniel R. Wik, V. Antoniou, M. Eracleous, Ann E. Hornschemeier, Margaret Lazzarini, Bret D. Lehmer, Neven Vulic, Benjamin F. Williams, T. J. Maccarone, K. Pottschmidt, Andrew Ptak, Mihoko Yukita, Andreas Zezas
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 2, p 167 (2024)
Using hard ( E > 10 keV) X-ray observations with NuSTAR, we are able to differentiate between the accretion states, and thus compact object types, of neutron stars (NSs) and black holes (BHs) in X-ray binaries (XRBs) in M31, our nearest Milky Way–t
Externí odkaz:
https://doaj.org/article/ec331e507f57451da6b31bc2c721fe6e
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 1, p 67 (2024)
Drawing from the Chandra archive and using a carefully selected set of nearby dwarf galaxies, we present a calibrated high-mass X-ray binary (HMXB) luminosity function in the low-mass galaxy regime and search for an already hinted at dependence on me
Externí odkaz:
https://doaj.org/article/3c1f2ac50196459cadfd05debb35378b
Autor:
Kristen Garofali, Antara R. Basu-Zych, Benjamin D. Johnson, Panayiotis Tzanavaris, Anne Jaskot, Chris T. Richardson, Bret D. Lehmer, Mihoko Yukita, Edmund Hodges-Kluck, Ann Hornschemeier, Andrew Ptak, Neven Vulic
Publikováno v:
The Astrophysical Journal, Vol 960, Iss 1, p 13 (2023)
We present a methodology for modeling the joint ionizing impact due to a “simple X-ray population” (SXP) and its corresponding simple stellar population (SSP), where “simple” refers to a single age and metallicity population. We construct com
Externí odkaz:
https://doaj.org/article/30a0ef6e0bdd4839a402e81d15efff0a
Autor:
Lacey West, Kristen Garofali, Bret D. Lehmer, Andrea Prestwich, Rafael Eufrasio, Wasutep Luangtip, Timothy P. Roberts, Andreas Zezas
Publikováno v:
The Astrophysical Journal, Vol 952, Iss 1, p 22 (2023)
Luminous infrared galaxies (LIRGs), the most extreme star-forming galaxies in the nearby ( D < 30 Mpc) universe, show a notable X-ray emission deficiency (up to a factor of ∼10) compared with predictions from scaling relations of galaxy-wide high-m
Externí odkaz:
https://doaj.org/article/565c64dfe3284272b6dae2a83c9f7ddb
Autor:
Erik B. Monson, Keith Doore, Rafael T. Eufrasio, Bret D. Lehmer, David M. Alexander, Chris M. Harrison, Mariko Kubo, Cristian Saez, Hideki Umehata
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 1, p 15 (2023)
We analyze the physical properties of eight X-ray-selected active galactic nuclei (AGNs) and one candidate protoquasar system (ADF22A1) in the z = 3.09 SSA22 protocluster by fitting their X-ray-to-IR spectral energy distributions (SEDs) using our SED
Externí odkaz:
https://doaj.org/article/b8fb54fe3f5d4a7ab5e5d3c72c91706a
Autor:
Keith Doore, Erik B. Monson, Rafael T. Eufrasio, Bret D. Lehmer, Kristen Garofali, Antara Basu-Zych
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 266, Iss 2, p 39 (2023)
We present an updated version of Lightning , a galaxy spectral energy distribution (SED) fitting code that can model X-ray to submillimeter observations. The models in Lightning include the options to contain contributions from stellar populations, d
Externí odkaz:
https://doaj.org/article/40e6294df0b243018688c11fd991c43d
Autor:
Konstantinos Kovlakas, Jeff J. Andrews, Ann Hornschemeier, Andrew Ptak, Andreas Zezas, A. Basu-Zych, Tassos Fragos, Bret D. Lehmer
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 498:4790-4810
Using the Chandra Source Catalog 2.0 and a newly compiled catalogue of galaxies in the local Universe, we deliver a census of ultraluminous X-ray source (ULX) populations in nearby galaxies. We find 629 ULX candidates in 309 galaxies with distance sm
Autor:
Guang Yang, Médéric Boquien, W. N. Brandt, Véronique Buat, Denis Burgarella, Laure Ciesla, Bret D. Lehmer, Katarzyna Małek, George Mountrichas, Casey Papovich, Estelle Pons, Marko Stalevski, Patrice Theulé, Shifu Zhu
Publikováno v:
The Astrophysical Journal
The Astrophysical Journal, 2022, 927, ⟨10.3847/1538-4357/ac4971⟩
The Astrophysical Journal, 2022, 927, ⟨10.3847/1538-4357/ac4971⟩
Modern and future surveys effectively provide a panchromatic view for large numbers of extragalactic objects. Consistently modeling these multiwavelength survey data is a critical but challenging task for extragalactic studies. The Code Investigating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc94d800a1b83a6842865759e515a0aa
http://hdl.handle.net/10261/286949
http://hdl.handle.net/10261/286949