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11 papers · 2 filters
Evidence of 200 TeV photons from HAWC J1825-134
A. Albert, R. Alfaro, C. Alvarez +81
The Earth is bombarded by ultra-relativistic particles, known as cosmic rays (CRs). CRs with energies up to a few PeV (=10 eV), the knee in the particle spectrum, are believ…
Multiwavelength Characterization of the High Mass X-ray Binary Population of M31
Margaret Lazzarini, Benjamin F. Williams, Meredith Durbin +7
We present our analysis of high quality high mass X-ray binary (HMXB) candidates in M31 selected from point-source optical-counterpart candidates from the Chandra-PHAT survey catal…
A deep Chandra survey for faint X-ray sources in the Galactic globular cluster M30, and searches for optical and radio counterparts
Yue Zhao, Craig O. Heinke, Haldan N. Cohn +11
We present a deep () {\it Chandra} survey of the Galactic globular cluster M30 (NGC 7099). Combining the new Cycle 18 with the previous Cycle 3 observations w…
Swift/XRT, Chandra and XMM-Newton observations of IGR J17091-3624 as it returns into quiescence
Pereyra, Margarita, Altamirano +11
IGR J17091-3624 is a low mass X-ray binary (LMXB) which received wide attention from the community thanks to its similarities with the bright black hole system GRS 1915+105. Both s…
The MAVERIC Survey: Chandra/ACIS Catalog of Faint X-ray sources in 38 Galactic globular clusters
Arash Bahramian, Jay Strader, James C. A. Miller-Jones +11
Globular clusters host a variety of lower-luminosity ( erg s) X-ray sources, including accreting neutron stars and black holes, millisecond pulsars, cataclysmic…
The stringent upper limit on jet power in the persistent soft state source 4U~1957+11
Thomas J. Maccarone, Arlo Osler, James C. A. Miller-Jones +5
We present extremely deep upper limits on the radio emission from 4U~1957+11, an X-ray binary that is generally believed to be a persistently accreting black hole that is almost al…