Zobrazeno 1 - 10
of 58
pro vyhledávání: '"O'Neil, Karen"'
Autor:
Lazio, Joseph, Bonsall, Amber, Brozovic, Marina, Giorgini, Jon D., O'Neil, Karen, Rivera-Valentin, Edgard, Virkki, Anne K., Cordova, Francisco, Busch, Michael, Campbell, Bruce A., Edwards, P. G., Fernandez, Yanga R., Kruzins, Ed, Pinilla-Alonso, Noemi, Slade, Martin A., Venditti, F. C. F.
Planetary radars have obtained unique science measurements about solar system bodies and they have provided orbit determinations allowing spacecraft to be navigated throughout the solar system. Notable results have been on Venus, Earth's "twin," and
Externí odkaz:
http://arxiv.org/abs/1908.05171
Autor:
Maan, Yogesh, Deshpande, Avinash A., Chandrashekar, Vinutha, Chennamangalam, Jayanth, Rao, K. B. Raghavendra, Somashekar, R., Anderson, Gary, Ezhilarasi, M. S., Sujatha, S., Kasturi, S., Sandhya, P., Bauserman, Jonah, Duraichelvan, R., Amiri, Shahram, Aswathappa, H. A., Barve, Indrajit V., Sarabagopalan, G., Ananda, H. M., Beaudet, Carla, Bloss, Marty, Dhamnekar, Deepa B., Egan, Dennis, Ford, John, Krishnamurthy, S., Mehta, Nikhil, Minter, Anthony H., Nagaraja, H. N., Narayanaswamy, M., O'Neil, Karen, Raja, Wasim, Sahasrabudhe, Harshad, Shelton, Amy, Srivani, K. S., Venugopal, H. V., Viswanathan, Salna T.
We report the design and development of a self-contained multi-band receiver (MBR) system, intended for use with a single large aperture to facilitate sensitive & high time-resolution observations simultaneously in 10 discrete frequency bands samplin
Externí odkaz:
http://arxiv.org/abs/1210.2573
Autor:
Roshi, D. Anish, Bloss, Marty, Brandt, Patrick, Bussa, Srikanth, Chen, Hong, Demorest, Paul, Desvignes, Gregory, Filiba, Terry, Fisher, Richard J., Ford, John, Frayer, David, Garwood, Robert, Gowda, Suraj, Jones, Glenn, Mallard, Billy, Masters, Joseph, McCullough, Randy, Molera, Guifre, O'Neil, Karen, Ray, Jason, Scott, Simon, Shelton, Amy, Siemion, Andrew, Wagner, Mark, Watts, Galen, Werthimer, Dan, Whitehead, Mark
A new spectrometer for the Green Bank Telescope (GBT) is being built jointly by the NRAO and the CASPER, University of California, Berkeley. The spectrometer uses 8 bit ADCs and will be capable of processing up to 1.25 GHz bandwidth from 8 dual polar
Externí odkaz:
http://arxiv.org/abs/1202.0938
Autor:
Freudling, Wolfram, Staveley-Smith, Lister, Catinella, Barbara, Minchin, Robert, Calabretta, Mark, Momjian, Emmanuel, Zwaan, Martin, Meyer, Martin, O'Neil, Karen
The "ALFA Ultra Deep Survey" (AUDS) is an ongoing 21-cm spectral survey with the Arecibo 305m telescope. AUDS will be the most sensitive blind survey undertaken with Arecibo's 300 MHz Mock spectrometer. The survey searches for 21-cm HI line emission
Externí odkaz:
http://arxiv.org/abs/1011.0877
Autor:
Liu, Charles T., Hooper, Eric J., O'Neil, Karen, Thompson, David, Wolf, Marsha, Lisker, Thorsten
Publikováno v:
Astrophys.J.658:249-257,2007
We present multiwavelength observations of the very luminous "E+A" galaxy known as G515 (J152426.55+080906.7), including deep K_s imaging, spatially resolved H-alpha spectroscopy, and radio observations. The data, together with detailed spectral synt
Externí odkaz:
http://arxiv.org/abs/astro-ph/0612053
Publikováno v:
Astrophys.J.651:853-860,2006
We present BIMA and IRAM CO(1--0) observations of seven low surface brightness (LSB) galaxies, including three large spirals with faint disks but prominent bulges, and four relatively small LSB galaxies with irregular disks. The giant LSB galaxies ar
Externí odkaz:
http://arxiv.org/abs/astro-ph/0606746
Publikováno v:
Astrophys.J. 591 (2003) 167-184
We present in this paper the deepest Arecibo HI observations of Virgo cluster dwarf ellipticals (dEs) taken to date. Based on this data we argue that a significant fraction of Virgo cluster dEs recently underwent evolution. Our new observations consi
Externí odkaz:
http://arxiv.org/abs/astro-ph/0303185
Autor:
Heiles, Carl, Perillat, Phil, Nolan, Michael, Lorimer, Duncan, Bhat, Ramesh, Ghosh, Tapasi, Howell, Ellen, Lewis, Murray, O'Neil, Karen, Salter, Chris, Stanimirovic, Snezana
We describe a scheme that characterizes the main beam and sidelobe in all Stokes parameters employing parameters that allow reconstruction of the complete beam patterns and, also, afford an easy way to see how the beam changes with azimuth, zenith an
Externí odkaz:
http://arxiv.org/abs/astro-ph/0107349
Autor:
Heiles, Carl, Perillat, Phil, Nolan, Michael, Lorimer, Duncan, Bhat, Ramesh, Ghosh, Tapasi, Lewis, Murray, O'Neil, Karen, Salter, Chris, Stanimirovic, Snezana
Modern digital crosscorrelators permit the simultaneous measurement of all four Stokes parameters. However, the results must be calibrated to correct for the polarization transfer function of the receiving system. The transfer function for any device
Externí odkaz:
http://arxiv.org/abs/astro-ph/0107352
Publikováno v:
Astrophys.J.Suppl. 128 (2000) 99-124
[Abridged] HST WFPC2 images were taken of four low surface brightness galaxies in the direction of the Virgo cluster. The high resolution of the WFPC2 combined with the extremely diffuse nature of the four galaxies makes them essentially transparent,
Externí odkaz:
http://arxiv.org/abs/astro-ph/9911131