Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Scott D. Hyman"'
Autor:
Dale A. Frail, Emil Polisensky, Scott D. Hyman, William D. Cotton, Namir E. Kassim, Michele L. Silverstein, Rahul Sengar, David L. Kaplan, Francesca Calore, Joanna Berteaud, Maïca Clavel, Marisa Geyer, Samuel Legodi, Vasaant Krishnan, Sarah Buchner, Fernando Camilo
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 1, p 34 (2024)
We report on the results of an image-based search for pulsar candidates toward the Galactic bulge. We used mosaic images from the MeerKAT radio telescope that were taken as part of a 173 deg ^2 survey of the bulge and Galactic center of our Galaxy at
Externí odkaz:
https://doaj.org/article/a23f36a0ad824eb581c0b70125d428f3
Autor:
Scott D. Hyman, Julia Deneva, Vishal Gajjar, Dale A. Frail, J. E. Kooi, Wendy Peters, T. J. W. Lazio, N. E. Kassim, Simona Giacintucci, A. P. V. Siemion, I. Joyner
From an on-going survey of the Galactic bulge, we have discovered a number of compact, steep spectrum radio sources. In this present study we have carried out more detailed observations for two of these sources, located 43 arcmin and 12.7 deg from th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::445aacc608a9e8aa2fa52300662e9a31
Autor:
Scott D. Hyman, Julia Deneva, J. E. Kooi, Dale A. Frail, E. Polisensky, Paul S. Ray, Maura McLaughlin, N. E. Kassim
Publikováno v:
The Astrophysical Journal. 876:20
Autor:
Wendy Peters, Scott D. Hyman, Tracy Clarke, Simona Giacintucci, Emil Polisensky, Namir E. Kassim
Publikováno v:
Proceedings of The many facets of extragalactic radio surveys: towards new scientific challenges — PoS(EXTRA-RADSUR2015).
The US Naval Research Laboratory (NRL) and the National Radio Astronomy Observatory (NRAO) have collaborated to develop, install, and commission a new commensal system on the Karl G. Jansky Very Large Array (VLA). The VLA Low Band Ionospheric and Tra
Autor:
Paul S. Ray, T. Joseph W. Lazio, Sabyasachi Pal, Scott D. Hyman, Namir E. Kassim, Subhashis Roy
Publikováno v:
The Astrophysical Journal. 712:L5-L9
We report detection of strong circularly polarized emission from the transient bursting source GCRT J1745-3009 based on new analysis of 325 MHz GMRT observations conducted on 28 September 2003. We place 8 Solar radius as the upper limit on the size o
Autor:
Namir E. Kassim, Subhashis Roy, David L. Kaplan, Scott D. Hyman, T. J. W. Lazio, Paul S. Ray, Deepto Chakrabarty, Reba M. Bandyopadhyay
Publikováno v:
The Astrophysical Journal. 687:262-271
We present an optical/near-infrared search for a counterpart to the perplexing radio transient GCRT J1745-3009, a source located ~1 degree from the Galactic Center. Motivated by some similarities to radio bursts from nearby ultracool dwarfs, and by a
Autor:
Paul Demorest, Geoffrey C. Bower, Scott D. Hyman, Scott M. Ransom, R Bhat, Joseph Lazio, J. M. Cordes, Julia S. Deneva, Wouter Vlemmings, Shami Chatterjee, Donald C. Backer
Publikováno v:
Journal of Physics: Conference Series. 54:110-114
Radio pulsars and transients provide powerful probes of the star formation history, interstellar medium, and gravitational potential of the Galactic center. Historical radio observations of the Galactic center have not emphasized the time domain aspe
Autor:
Paul S. Ray, T. Joseph W. Lazio, Scott D. Hyman, Subhashis Roy, Jennifer L. Neureuther, Namir E. Kassim
Publikováno v:
The Astrophysical Journal. 639:348-353
GCRT J1745-3009 is a transient bursting radio source located in the direction of the Galactic center, discovered by Hyman et al. in 330 MHz VLA observations from 2002 September 30-October 1. We have searched for bursting activity from GCRT J1745-3009
Publikováno v:
Proceedings of the International Astronomical Union. 9:458-460
An upgrade of the low frequency observing system of the VLA developed by NRL and NRAO, called low band (LB), will open a new era of Galactic center (GC) transient monitoring. Our previous searches using the VLA and GMRT have revealed a modest number
Autor:
Michael E. Nord, Crystal L. Brogan, T. N. LaRosa, Scott D. Hyman, T. Joseph W. Lazio, Namir E. Kassim, Nebojsa Duric
Publikováno v:
The Astronomical Journal. 128:1646-1670
We present a wide field, sub-arcminute resolution VLA image of the Galactic Center region at 330 MHz. With a resolution of ~ 7" X 12" and an RMS noise of 1.6 mJy/beam, this image represents a significant increase in resolution and sensitivity over th