Rocket Observations of Far-Ultraviolet Dust Scattering in NGC 2023

Details Rocket Observations of Far-Ultraviolet Dust Scattering in NGC 2023 Rocket Observations of Far-Ultraviolet Dust Scattering in NGC 2023

2002-04-09

arxiv.org/abs/astro-ph/0204156v1

Astronomy and Astrophysics

Astrophysics

16 pages, 11 figures, accepted for publication in the Astrophysical Journal

Scientific paper

10.1086/341194

The reflection nebula NGC 2023 was observed by a rocket-borne long-slit imaging spectrograph in the 900 -- 1400 Angstrom bandpass on 2000 February 11. A spectrum of the star, as well as that of the nebular scattered light, was recorded. Through the use of a Monte Carlo modeling process, the scattering properties of the dust were derived. The albedo is low, 0.2 -- 0.4, and decreasing toward shorter wavelengths, while the phase function asymmetry parameter is consistent with highly forward-scattering grains, g~0.85. The decrease in albedo, while the optical depth increases to shorter wavelengths, implies that the far-UV rise in the extinction curve is due to an increase in absorption efficiency.

Affiliated with

Also associated with

No associations

Rating

Rocket Observations of Far-Ultraviolet Dust Scattering in NGC 2023 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 Rocket Observations of Far-Ultraviolet Dust Scattering in NGC 2023, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rocket Observations of Far-Ultraviolet Dust Scattering in NGC 2023 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-386896