Double-Peaked Neon and Oxygen Lines from the Accretion Disk in 4U 1626-67

Details Double-Peaked Neon and Oxygen Lines from the Accretion Disk in 4U 1626-67 Double-Peaked Neon and Oxygen Lines from the Accretion Disk in 4U 1626-67

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001tysc.confe.105c&link_type=abstract

Two Years of Science with Chandra, Abstracts from the Symposium held in Washington, DC, 5-7 September, 2001, meeting abstract.

Computer Science

Black Hole And Neutron Star Binaries

Scientific paper

We report on a 40 ks observation of the 7.7-s LMXB pulsar 4U 1626-67 with the Chandra HETGS. This ultracompact system consists of a disk-accreting neutron star and a very low mass hydrogen-depleted companion in a 42-min binary. We have resolved the previously reported Ne/O emission line complex near 1 keV into Doppler pairs of broadened lines from hydrogenic and He-like Ne and O. The lines appear to originate in optically thin material near the surface of the Keplerian accretion disk, or possibly in an accretion disk wind driven from the magnetopause. The observed photoelectric absorption edges of Ne and O are nearly an order of magnitude stronger than expected from the ISM along the line of sight, suggesting that the mass-losing hydrogen-depleted companion in this binary may be a C/O/Ne or O/Ne/Mg white dwarf.

Affiliated with

Also associated with

No associations

Rating

Double-Peaked Neon and Oxygen Lines from the Accretion Disk in 4U 1626-67 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Double-Peaked Neon and Oxygen Lines from the Accretion Disk in 4U 1626-67, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double-Peaked Neon and Oxygen Lines from the Accretion Disk in 4U 1626-67 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1163512