Detection of Extended Thermal Infrared Emission around the Vega-like Source HD 141569

Details Detection of Extended Thermal Infrared Emission around the Vega-like Source HD 141569 Detection of Extended Thermal Infrared Emission around the Vega-like Source HD 141569

Apr 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...532l.141f&link_type=abstract

The Astrophysical Journal, Volume 532, Issue 2, pp. L141-L144.

Astronomy and Astrophysics

Astronomy

43

Stars: Circumstellar Matter, Stars: Individual: Henry Draper Number: Hd 141569

Scientific paper

We report the detection of extended IR emission at 10.8 and 18.2 μm around the Vega-like source HD 141569. Mid-IR imaging with OSCIR on Keck II shows emission from dust extending out to 100 AU from the B9.5 Ve star. Our modeling of the dust places an upper limit of ~2 μm on the diameter of the mid-IR-emitting particles if they are Mie spheres of astronomical silicates. Comparison of our mid-IR images to the near-IR (1.1 μm) NICMOS images of HD 141569 (Weinberger et al. 1999) shows that the mid-IR emission originates at smaller distances from the star than the scattered near-IR light, as also previously observed for the archetype Vega-like source β Pictoris.

Affiliated with

Also associated with

No associations

Rating

Detection of Extended Thermal Infrared Emission around the Vega-like Source HD 141569 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 Detection of Extended Thermal Infrared Emission around the Vega-like Source HD 141569, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of Extended Thermal Infrared Emission around the Vega-like Source HD 141569 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-750327