Results 71 to 80 of about 11,014 (187)

The Exceptional 2017 γ-Ray Flare of the Radio Galaxy NGC 1275: VERITAS and Multiwavelength Observations

The Astrophysical Journal
The radio galaxy NGC 1275 is the brightest cluster galaxy in the Perseus Cluster. It is well studied across all wave bands, including very high-energy (VHE; E  ≥ 100 GeV) γ -rays, and with radio observations over the last 20 yr tracking an unusual radio ...
A. Acharyya, A. Archer, P. Bangale, J. T. Bartkoske, W. Benbow, Y. Chen, J. L. Christiansen, A. J. Chromey, A. Duerr, M. Errando, M. Escobar Godoy, A. Falcone, S. Feldman, Q. Feng, S. Filbert, L. Fortson, A. Furniss, W. Hanlon, O. Hervet, C. E. Hinrichs, J. Holder, Z. Hughes, M. Iskakova, W. Jin, M. N. Johnson, P. Kaaret, M. Kertzman, M. Kherlakian, D. Kieda, T. K. Kleiner, N. Korzoun, F. Krennrich, S. Kundu, M. J. Lang, M. Lundy, G. Maier, E. Meyer, P. Moriarty, R. Mukherjee, W. Ning, M. Ohishi, R. A. Ong, A. Pandey, J. Escudero Pedrosa, M. Pohl, E. Pueschel, J. Quinn, P. L. Rabinowitz, K. Ragan, P. T. Reynolds, D. Ribeiro, E. Roache, C. Rulten, I. Sadeh, L. Saha, M. Santander, G. H. Sembroski, R. Shang, M. Splettstoesser, D. Tak, A. K. Talluri, J. V. Tucci, J. Valverde, V. V. Vassiliev, D. A. Williams, S. L. Wong, T. Yoshikoshi, (VERITAS Collaboration), P. S. Smith, J. Kataoka   +69 more
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Modeling the spectral energy distribution of ULIRGs I: the radio spectra [PDF]

, 2008
Aims. We aim to constrain new starburst/AGN models of IRAS bright galaxies via their spectral energy distribution from the nearinfrared to the radio. To this end, we determine the radio spectra for a sample of 31 luminous and ultraluminous IRAS galaxies (
OLGA MERCEDES VEGA CASANOVA
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Python for gamma-ray astronomy [PDF]

, 2016
Gamma-ray astronomy is a relatively new window on the cosmos. The first source detected from the ground was the Crab nebula, seen by the Whipple telescope in Arizona in 1989.
Deil, Christoph, Deil, Christoph (5304058)   +1 more
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3D MC. I. X-Ray Tomography Begins to Unravel the 3D Structure of a Molecular Cloud in our Galaxy’s Center

The Astrophysical Journal Letters
Astronomers have used observations of the Galactic gas and dust via infrared, microwave, and radio to study molecular clouds in extreme environments such as the Galactic center.
Samantha W. Brunker, Cara Battersby, Danya Alboslani, Maïca Clavel, Daniel L. Walker, Dani Lipman, H Perry Hatchfield, Régis Terrier   +7 more
doaj   +1 more source

Asteroid thermophysical modeling [PDF]

, 2015
The field of asteroid thermophysical modeling has experienced an extraordinary growth in the last ten years, as new thermal infrared data became available for hundreds of thousands of asteroids.
Mueller, Michael, Capria, Maria Teresa, Rozitis, Ben, Emery, Joshua P., DeMeo, Francesca E., Michel, Patrick, Botke, William F., Delbo, Marco   +7 more
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Bridging gaps with computer vision: AI in (bio)medical imaging and astronomy [PDF]

This paper explores how artificial intelligence (AI) techniques can address common challenges in astronomy and (bio)medical imaging. It focuses on applying convolutional neural networks (CNNs) and other AI methods to tasks such as image reconstruction ...
Staring, M., Vafaeisadr, A., Rezaei, S., Chegeni, A., Rottgering, H., Javadpour, A., Cao, L.   +6 more
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Constraining the Stellar Mass and Disk Radius of L1527 with RadChemT [PDF]

, 2022
Modeling is a fundamental aspect of research in astronomy that helps provide a deeper understanding of theories and the nature of physics. Protostars are a particularly difficult object to study because they are hidden in molecular clouds for much of ...
Ocampo Alzate, Laura Cristina
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AstroSR: A Data Set of Galaxy Images for Astronomical Superresolution Research

The Astrophysical Journal Supplement Series
In the past decade, various sky surveys with a wide range of wavelengths have been conducted, resulting in an explosive growth of survey data. There may be overlapping regions between different surveys, but the data quality and brightness are different ...
Jiawei Miao, Liangping Tu, Bin Jiang, Xiangru Li, Bo Qiu   +4 more
doaj   +1 more source

Astronomy Reports V. 49, I. 07 [PDF]

, 2005
Astronomy Reports -- July 2005 Volume 49, Issue 7, pp. 501-586 The Stellar Structure of Irregular Galaxies. Face-on Galaxies N. A. Tikhonov pp. 501-509 Full Text: PDF (517 kB) Evolution of Galaxies and the Tully–Fisher Relation E.

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Gas-dynamical Mass Measurements of the Supermassive Black Holes in the Early-type Galaxies NGC 4786 and NGC 5193 from ALMA and HST Observations

The Astrophysical Journal
We present molecular gas-dynamical mass measurements of the central black holes in the giant elliptical galaxies NGC 4786 and NGC 5193, based on CO (2−1) observations from the Atacama Large Millimeter/submillimeter Array (ALMA) and Hubble Space Telescope
Kyle M. Kabasares, Jonathan H. Cohn, Aaron J. Barth, Benjamin D. Boizelle, Jared R. Davidson, Janelle M. Sy, Jeysen Flores-Velázquez, Silvana C. Delgado Andrade, David A. Buote, Jonelle L. Walsh, Andrew J. Baker, Jeremy Darling, Luis C. Ho   +12 more
doaj   +1 more source