Results 11 to 20 of about 788,774 (301)

V751 Cyg and V Sge as transient supersoft X-ray sources [PDF]

, 1999
I review the observational evidence for luminous, soft X-ray emission during optical low-states in the two cataclysmic variables V751 Cyg and V Sge, and discuss the possible link to the canonical supersoft X-ray sources.Comment: 6 pages with newarcrc.sty;
Greiner, J.
core   +3 more sources

Fermi-LAT results on Galactic Plane gamma-ray Transient Sources [PDF]

, 2009
The Large Area Telescope on the Fermi gamma-ray Space Telescope provides unprecedented sensitivity for all-sky monitoring of gamma-ray activity. It has detected a few Galactic sources, including 2 gamma-ray binaries and a microquasar.
Chaty, Sylvain
core   +3 more sources

Calculation and Uncertainty of Fast Radio Burst Structure Based on Smoothed Data

The Astrophysical Journal, 2023
Studies of the time-domain structure of fast radio bursts (FRBs) require an accurate estimate of the FRB dispersion measure in order to recover the intrinsic burst shape.
Adrian T. Sutinjo, Danica R. Scott, Clancy W. James, Marcin Glowacki, Keith W. Bannister, Hyerin Cho, Cherie K. Day, Adam T. Deller, Timothy P. Perrett, Ryan M. Shannon   +9 more
doaj   +1 more source

A 22-year Southern Sky Survey for Transient and Variable Radio Sources using the Molonglo Observatory Synthesis Telescope

, 2010
We describe a 22-year survey for variable and transient radio sources, performed with archival images taken with the Molonglo Observatory Synthesis Telescope (MOST).
Alcock, Amy, B. M. Gaensler, Ball, Bastian, Becker, Becker, Bignall, Bock, Bode, Bonnarel, Bower, Bower, Burke-Spolaor, Błażejowski, Caldwell, Campbell-Wilson, Campbell-Wilson, Carilli, Chatterjee, Condon, Croft, Croom, Dale, Dressler, Eck, Fender, Fender, Gaensler, Gaensler, Gezari, Gould, Green, Gregory, Hambly, Hankins, Hannikainen, Hopkins, Hopkins, Hunstead, Jakobsson, Jones, K. W. Bannister, Kesteven, Kesteven, Koposov, Kramer, Large, Lenc, Levinson, Lorimer, Lovell, MacFadyen, Manchester, Matsumura, Mauch, Mills, Moshir, Moshir, Murphy, Murphy, Niinuma, Ofek, Perlmutter, R. W. Hunstead, Rickett, Riess, Robertson, S. Chatterjee, Sault, Seielstad, Sokoloski, Stern, Strauss, T. Murphy, Turtle, Voges, Weiler, Wilson, Wright, Wright   +80 more
core   +1 more source

Subarcminute Localization of 13 Repeating Fast Radio Bursts Detected by CHIME/FRB

The Astrophysical Journal, 2023
We report on improved sky localizations of 13 repeating fast radio bursts (FRBs) discovered by CHIME/FRB via the use of interferometric techniques on channelized voltages from the telescope.
Daniele Michilli, Mohit Bhardwaj, Charanjot Brar, B. M. Gaensler, Victoria M. Kaspi, Aida Kirichenko, Kiyoshi W. Masui, Ryan Mckinven, Cherry Ng, Chitrang Patel, Ketan R. Sand, Paul Scholz, Kaitlyn Shin, Seth R. Siegel, Ingrid Stairs, Tomas Cassanelli, Amanda M. Cook, Matt Dobbs, Fengqiu Adam Dong, Emmanuel Fonseca, Adaeze Ibik, Jane Kaczmarek, Calvin Leung, Aaron B. Pearlman, Emily Petroff, Ziggy Pleunis, Masoud Rafiei-Ravandi, Pranav Sanghavi, J. Richard Shaw, Shriharsh P. Tendulkar   +29 more
doaj   +1 more source

Transient sources at the highest angular resolution

, 2015
By definition transients are sudden events, some, like supernovae, are catastrophic, while others might be due to recurrent phenomena. The aim of studying transients is to reveal the physical conditions causing them, in this sense ideal targets for ...
Massi, Maria
core   +1 more source

The Spectral and Temporal Properties of Transient Sources in Early-type Galaxies [PDF]

, 2012
Copyright 2012 Elsevier B.V., All rights reserved.We report the spectral and temporal variability properties of 18 candidate transient (TC) and potential transient (PTC) sources detected in deep multi-epoch Chandra observation of the nearby elliptical ...
Brassington, Nicola, Fabbiano, G., Fragos, T., Kim, D.-W., King, A.R., Kundu, A., Pellegrini, S., Trinchieri, G., Wright, N.J., Zepf, S., Zezas, A.   +10 more
core   +2 more sources

A Catalog of Transient X-ray Sources in M31

, 2006
From October 1999 to August 2002, 45 transient X-ray sources were detected in M31 by Chandra and XMM-Newton. We have performed spectral analysis of all XMM-Newton and Chandra ACIS detections of these sources, as well as flux measurements of Chandra HRC ...
Benjamin F. Williams, Cropper M., Garcia M., Greiner J., Hasinger G., Heise J., Kong A., Kong A. K. H., Lewin W. H. G., Massey P., Michael R. Garcia, Negueruela I., Paul J. Callanan, Ramsay G., S. Naik, Shirey R., Trudolyubov S., van den Heuvel E. P. J., Zavlin V. E.   +18 more
core   +2 more sources

First XMM-Newton Observations of the Globular Cluster M22 [PDF]

, 2001
We have examined preliminary data of the globular cluster, M22, from the EPIC MOS detectors on board XMM-Newton. We have detected 27 X-ray sources within the centre of the field of view, 24 of which are new detections. Three sources were found within the
Asai, Asai, B. Gendre, Bahcall, Briel, Campana, D'Amico, D. Barret, Di Stefano, Djorgovski, Djorgovski, Fox, Grindlay, Grindlay, Harris, Hasinger, Hertz, Hertz, Johnston, Johnston, Kulkarni, Lightman, N. A. Webb, Narayan, Peterson, Piotto, Ramsay, Richman, Ritter, Thorsett, Turner, van der Klis, Verbunt, Verbunt, Verbunt, Verbunt, Verbunt, Zwart   +37 more
core   +2 more sources

A Dictionary Approach to Identifying Transient RFI

, 2017
As radio telescopes become more sensitive, the damaging effects of radio frequency interference (RFI) become more apparent. Near radio telescope arrays, RFI sources are often easily removed or replaced; the challenge lies in identifying them.
Czech, Daniel, Inggs, Michael, Mishra, Amit   +2 more
core   +1 more source