Dust Formation in the Wolf-Rayet Star WR137: NICMOS Follow-up

Details Dust Formation in the Wolf-Rayet Star WR137: NICMOS Follow-up Dust Formation in the Wolf-Rayet Star WR137: NICMOS Follow-up

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7940m&link_type=abstract

HST Proposal ID #7940

Astronomy and Astrophysics

Astronomy

Hst Proposal Id #7940

Scientific paper

We propose to use NICMOS on HST to take a second image of the dust formation region in the 13-year elliptical-orbit wind-interacting binary WR 137 = HD 192641 {WC7+OB}, within a few months after periastron passage, which occured around July-September 1997. Ground-based IR photometry shows that copious amounts of carbon- rich dust are forming around current periastron passage, when wind- wind collision compression is at its peak. Recently we obtained {GO # 7369, September 1997} direct images of HD 192641 with NIC-2 through the F165M, F237M filters. We have resolved, for the first time, IR-emitting dust in the close environment of HD 192641. As expected on the basis of groundbased, spatially unresolved IR spectrosocopy, we saw the dust emission only in the K-band, not in the H-band. We found that the dust emission occured in a few strong clumps within about 0.5" from the star. In order to study the dynamics of the dust formation, we request a follow-up NICMOS orbit.

Affiliated with

Also associated with

No associations

Rating

Dust Formation in the Wolf-Rayet Star WR137: NICMOS Follow-up 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 Dust Formation in the Wolf-Rayet Star WR137: NICMOS Follow-up, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dust Formation in the Wolf-Rayet Star WR137: NICMOS Follow-up will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-896449