skip to content
 

HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.

Goddard Space Flight Center   ASCA Helpdesk
  ASCA What's New
  HEASARC Site Map
  NASA Homepage

HEASARC HOME ASCA HOME ARCHIVE DATA ANALYSIS PROPOSALS & TOOLS STUDENTS / TEACHERS / PUBLIC
ASCA Guest Observer Facility
ABOUT ASCA GOF SERVICES WHAT'S NEW DATA PROCESSING TIMELINES & MISSION INFO RELATED SITES GALLERY

ASCA-Related IAU Circulars

Circular #: 5753
Title: Supernova 1993J in NGC3031
Comments: 37,000 second obs with GIS and SIS Lx ~ 5 x 1039 ers/s (1-10 keV) brem: kT > 10 keV, NH about 1021 cm-2
Authors: Y. Tanaka and the ASCA Team

Circular #: 5851
Title: GRO J1008-57
Comments: 93.6 second pulsar observed; double-peaked pulse profile; power law: phot ind = 1, NH about 1.3 x 1022 cm-2; Fx = 6 x 10-10 ergs/cm2/s (2-10 keV)
Authors: Y. Tanaka and the ASCA Team

Circular #: 5851
Title: GRO J0422+32
Comments: Observed X-ray source at GRO position Fx = 2 x 10-11 ergs/cm2/s (0.5-10 keV) power law: phot ind = 1.6
Authors: Y. Tanaka and the ASCA Team

Circular #: 5877
Title: X-ray Nova in Ophiuchus
Comments: Detection near edge of GRANAT/SIGMA error circle, Fx = 0.2 4 Crab (0.5-10 keV) rapid fluctuations of large amplitudes on timescales less than 1 sec.; power law: phot ind = 1.6, NH about 4 x 1021 cm-2
Authors: Y. Tanaka and the ASCA Team

Circular #: 5880
Title: SGR 1806-20
Comments: Observed burst in 4-sec time bin co-incident with BASTE g-ray burst. Also observed new X-ray source co-incident with radio source (18h 05m 42s -20d25m10s (1950)), Fx = 0.2 mCrab (0.5-10 keV) with heavy absorption. Tentatively identified as counterpart to SGR 1806-20.
Authors: Y. Tanaka and the ASCA Team

Circular #: 5888
Title: X-ray Nova in Vela
Comments: Observed GRS 1009-45 in BATSE error box brem: kT ~ 0.6 keV with hard tail; Fx = 2 x 10-8 ergs/cm2/s (1-10 keV)
Authors: Y. Tanaka and the ASCA Team

Contents Return to the Table of Contents Next Proceed to the next article