Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Shishkovsky, Laura"'
Autor:
Sokolovsky, Kirill V., Strader, Jay, Swihart, Samuel J., Aydi, Elias, Bahramian, Arash, Chomiuk, Laura, Heinke, Craig O., Hughes, Allison K., Li, Kwan-Lok, de Oliveira, Raimundo Lopes, Miller-Jones, James C. A., Mukai, Koji, Sand, David J., Shishkovsky, Laura, Tremou, Evangelia, Voggel, Karina
We report the discovery of 1RXH J082623.6-505741, a 10.4 hr orbital period compact binary. Modeling extensive optical photometry and spectroscopy reveals a $\sim 0.4 M_{\odot}$ K-type secondary transferring mass through a low-state accretion disk to
Externí odkaz:
http://arxiv.org/abs/2206.10625
Autor:
Tudor, Vlad, Miller-Jones, James C. A., Strader, Jay, Bahramian, Arash, Shishkovsky, Laura, Plotkin, Richard M., Chomiuk, Laura, Heinke, Craig O., Maccarone, Thomas J., Sivakoff, Gregory R., Tremou, Evangelia, Anderson, Gemma E., Russell, Thomas D., Tzioumis, Anastasios K.
Radio continuum observations offer a new window on compact objects in globular clusters compared to typical X-ray or optical studies. As part of the MAVERIC survey, we have used the Australia Telescope Compact Array to carry out a deep (median centra
Externí odkaz:
http://arxiv.org/abs/2204.08861
Autor:
Shishkovsky, Laura, Strader, Jay, Chomiuk, Laura, Tremou, Evangelia, Tudor, Vlad, Miller-Jones, James C. A., Bahramian, Arash, Heinke, Craig, Maccarone, Thomas J., Sivakoff, Gregory R.
Publikováno v:
ApJ, 2020, 903, 73
The MAVERIC survey is the first deep radio continuum imaging survey of Milky Way globular clusters, with a central goal of finding and classifying accreting compact binaries, including stellar-mass black holes. Here we present radio source catalogs f
Externí odkaz:
http://arxiv.org/abs/2204.08862
Autor:
Paduano, Alessandro, Bahramian, Arash, Miller-Jones, James C. A., Kawka, Adela, Strader, Jay, Chomiuk, Laura, Heinke, Craig O., Maccarone, Thomas J., Britt, Christopher T., Plotkin, Richard M., Shaw, Aarran W., Shishkovsky, Laura, Tremou, Evangelia, Tudor, Vlad, Sivakoff, Gregory R.
Transitional millisecond pulsars are millisecond pulsars that switch between a rotation-powered millisecond pulsar state and an accretion-powered X-ray binary state, and are thought to be an evolutionary stage between neutron star low-mass X-ray bina
Externí odkaz:
http://arxiv.org/abs/2107.02344
Autor:
Zhao, Yue, Heinke, Craig O., Shishkovsky, Laura, Strader, Jay, Chomiuk, Laura, Maccarone, Thomas J., Bahramian, Arash, Sivakoff, Gregory R., Miller-Jones, James C. A., Tremou, Evangelia
We investigate potential correlations between radio source counts (after background corrections) of 22 Galactic globular clusters (GCs) from the MAVERIC survey, and stellar encounter rates ($\Gamma$) and masses ($M$) of the GCs. Applying a radio lumi
Externí odkaz:
http://arxiv.org/abs/2104.12049
Autor:
Swihart, Samuel J., Strader, Jay, Aydi, Elias, Chomiuk, Laura, Dage, Kristen C., Shishkovsky, Laura
We have discovered a new candidate redback millisecond pulsar binary near the center of the error ellipse of the bright unassociated Fermi-LAT $\gamma$-ray source 4FGL J0940.3-7610. The candidate counterpart is a variable optical source that also sho
Externí odkaz:
http://arxiv.org/abs/2101.08776
Autor:
Miller, Jessie M., Swihart, Samuel J., Strader, Jay, Urqhuart, Ryan, Aydi, Elias, Chomiuk, Laura, Dage, Kristen C., Kawash, Adam, Shishkovsky, Laura, Sokolovsky, Kirill V.
We report the discovery of a variable optical and X-ray source within the error ellipse of the previously unassociated Fermi Large Area Telescope $\gamma$-ray source 4FGL J0407.7--5702. A 22 ksec observation from XMM-Newton/EPIC shows an X-ray light
Externí odkaz:
http://arxiv.org/abs/2009.09054
Autor:
Zhao, Yue, Heinke, Craig O., Cohn, Haldan N., Lugger, Phyllis M., Guillot, Sebastien, Echiburú, Constanza, Shishkovsky, Laura, Strader, Jay, Chomiuk, Laura, Bahramian, Arash, Miller-Jones, James C. A., Maccarone, Thomas J., Tremou, Evangelia, Sivakoff, Gregory R.
We present a deep ($\sim 330~\mathrm{ks}$) {\it Chandra} survey of the Galactic globular cluster M30 (NGC 7099). Combining the new Cycle 18 with the previous Cycle 3 observations we report a total of 10 new X-ray point sources within the $1.03$ arcmi
Externí odkaz:
http://arxiv.org/abs/2009.07924
Autor:
Urquhart, Ryan, Bahramian, Arash, Strader, Jay, Chomiuk, Laura, Ransom, Scott M., Wang, Yuankun, Heinke, Craig O., Tudor, Vlad, Miller-Jones, James C. A., Tetarenko, Alexandra J., Maccarone, Thomas J., Sivakoff, Gregory R., Shishkovsky, Laura, Swihart, Samuel J., Tremou, Evangelia
Owing to its massive, dense core, Terzan 5 has the richest population of millisecond pulsars known among Galactic globular clusters. Here we report new deep $2-8\,$GHz radio continuum observations of Terzan\,5 obtained with the Karl G. Jansky Very La
Externí odkaz:
http://arxiv.org/abs/2009.07286
Autor:
Bahramian, Arash, Strader, Jay, Miller-Jones, James C. A., Chomiuk, Laura, Heinke, Craig O., Maccarone, Thomas J., Pooley, David, Shishkovsky, Laura, Tudor, Vlad, Zhao, Yue, Li, Kwan Lok, Sivakoff, Gregory R., Tremou, Evangelia, Buchner, Johannes
Globular clusters host a variety of lower-luminosity ($L_X<10^{35}$ erg s$^{-1}$) X-ray sources, including accreting neutron stars and black holes, millisecond pulsars, cataclysmic variables, and chromospherically active binaries. In this paper, we p
Externí odkaz:
http://arxiv.org/abs/2007.04581