Zobrazeno 1 - 10
of 258
pro vyhledávání: '"William B. Sparks"'
Autor:
Eric S. Perlman, Devon Clautice, Sayali Avachat, Mihai Cara, William B. Sparks, Markos Georganopoulos, Eileen Meyer
Publikováno v:
Galaxies, Vol 8, Iss 4, p 71 (2020)
Since the launch of Chandra twenty years ago, one of the greatest mysteries surrounding Quasar Jets is the production mechanism for their extremely high X-ray luminosity. Two mechanisms have been proposed. In the first view, the X-ray emission is inv
Externí odkaz:
https://doaj.org/article/c4095c8db4434e559f21fcab950773e6
Autor:
Eileen T. Meyer, William B. Sparks, Markos Georganopoulos, Roeland van der Marel, Jay Anderson, Sangmo T. Sohn, John Biretta, Colin Norman, Marco Chiaberge, Eric Perlman
Publikováno v:
Galaxies, Vol 5, Iss 1, p 8 (2017)
The Hubble Space Telescope recently celebrated 25 years of operation. Some of the first images of extragalactic optical jets were taken by HST in the mid-1990s; with time baselines on the order of 20 years and state-of-the-art astrometry techniques,
Externí odkaz:
https://doaj.org/article/423d97604ed54916894ffb94a1b67010
Astrobiology is one of the hottest areas of current research, reflecting not only impressive advances in the understanding of the origin of life but also the discovery of over 100 extrasolar planets in recent years. This volume is based on a meeting
Autor:
Bill Farrell, Sarah Stewart Johnson, Alexis S. Templeton, J. L. Eigenbrode, William B. Sparks, Margaret Weng, William B. Brinckerhoff, John Grunsfeld, Tori M. Hoehler, Roger E. Summons, Alison E. Murray, Kathleen L. Craft, Ricardo Arevalo, Morgan L. Cable, Mehdi Benna, Paul R. Mahaffy, James B. Garvin
Publikováno v:
Bulletin of the AAS. 53
Autor:
Jeremy J. Harwood, Giacomo Venturi, B. Balmaverde, C. P. O'Dea, E. Sani, B. Wilkes, R. P. Kraft, F. Ricci, V. H. Mahatma, Stefi A. Baum, A. Jimenez-Gallardo, R. J. van Weeren, William B. Sparks, Elisabetta Liuzzo, Grant R. Tremblay, M. A. Prieto, Pasquale Mazzotta, C. Mazzucchelli, Alessandro Capetti, Francesco Massaro, William R. Forman, H. J. A. Röttgering, V. Missaglia, Ranieri D. Baldi, Joanna Kuraszkiewicz, Alessandro Paggi
Publikováno v:
Astrophysical Journal Letters, 912(2)
We present the analysis of X-ray and optical observations of gas filaments observed in the radio source 3CR 318.1, associated with NGC 5920, the Brightest Cluster Galaxy (BCG) of MKW 3s, a nearby cool core galaxy cluster. This work is one of the firs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cb681d7553bc238dd14e4b36b94a748
https://hdl.handle.net/11590/420127
https://hdl.handle.net/11590/420127
Autor:
William B. Sparks, Charles M. Telesco, Robert E. Blankenship, Thomas A. Germer, Mary Niki Parenteau, Kimberly Bott, Christian Herman Lucas Patty, Victoria S. Meadows
Publikováno v:
Astrobiology
Photosynthesis is an ancient metabolic process that began on the early Earth, offering plentiful energy to organisms that utilize it, to the extent that they can achieve global significance. The potential exists for similar processes to operate on ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9bba64ea8420abb97119e59cec21b65
http://arxiv.org/abs/2010.02133
http://arxiv.org/abs/2010.02133
Autor:
Markos Georganopoulos, Eileen T. Meyer, Eric S. Perlman, Devon Clautice, Sayali S. Avachat, William B. Sparks, Mihai Cara
Publikováno v:
Galaxies
Volume 8
Issue 4
Galaxies, Vol 8, Iss 71, p 71 (2020)
Volume 8
Issue 4
Galaxies, Vol 8, Iss 71, p 71 (2020)
Since the launch of Chandra twenty years ago, one of the greatest mysteries surrounding Quasar Jets is the production mechanism for their extremely high X-ray luminosity. Two mechanisms have been proposed. In the first view, the X-ray emission is inv
Autor:
James E. Pringle, Jonathan P. Marshall, Daniel V. Cotton, William B. Sparks, Jeremy Bailey, Ted von Hippel
We have made high precision polarimetric observations of the polluted white dwarf G29-38 with the HIgh Precision Polarimetric Instrument 2. The observations were made at two different observatories -- using the 8.1-m Gemini North Telescope and the 3.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b51a3549393880e7200c8337308c2cc0
http://arxiv.org/abs/2004.04952
http://arxiv.org/abs/2004.04952
Autor:
William B. Sparks, Ranieri D. Baldi, Alessandro Capetti, Barbara Balmaverde, Paola Grandi, Marco Chiaberge, Giacomo Venturi, Stefi A. Baum, C. P. O'Dea, Clive Tadhunter, George K. Miley, Alessandro Marconi, Roberto Gilli, E. Torresi, Eileen T. Meyer, Grant R. Tremblay
Publikováno v:
Astronomy & Astrophysics, 657:A114
We present observations obtained with the VLT/MUSE optical integral field spectrograph of the radio source 3C277.3, located at a redshift of 0.085 and associated with the galaxy Coma A. An emission line region fully enshrouds the double-lobed radio s
Autor:
M. A. Berg, Clive Tadhunter, C. Ramos Almeida, Dan Batcheldor, H. W. W. Spoon, William B. Sparks, J. Rodríguez Zaurín, R. A. W. Spence, Marco Chiaberge, M. Rose
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 478:1558-1569
The true importance of the warm, AGN-driven outflows for the evolution of galaxies remains uncertain. Measurements of the radial extents of the outflows are key for quantifying their masses and kinetic powers, and also establishing whether the AGN ou