Published May 20, 2013 | Version v1
Journal article Metadata-only

AZIMUTHAL STRUCTURE OF THE Cyg X-2 X-RAY DUST HALO

Creators

  • 1. Smithsonian Astrophysical Observatory, 60 Garden St., Cambridge, MA 02138 (United States)

Description

There is little information concerning the azimuthal distribution of X-rays in dust-scattering halos. This paper describes a Chandra observation of the bright source Cyg X-2 designed specifically for this purpose. After measuring and subtracting ≈10% instrument effects, we find the scattering halo to be rather uniform with possible fluctuations in the surface brightness of only 2%. Observations and data processing are discussed in detail. Some information about the dust distribution is derived.

Availability note (English)

Available from http://dx.doi.org/10.1088/0004-637X/769/1/17

Additional details

Identifiers

DOI
10.1088/0004-637X/769/1/17;

Publishing Information

Journal Title
Astrophysical Journal
Journal Volume
769
Journal Issue
1
Journal Page Range
[9 p.]
ISSN
0004-637X
CODEN
ASJOAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44081746
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
BRIGHTNESS; DATA PROCESSING; DISTRIBUTION; DUSTS; FLUCTUATIONS; SCATTERING; SURFACES; X RADIATION
Descriptors DEC
ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; PROCESSING; RADIATIONS; VARIATIONS