Color Gradients Detected in the HD 15115 Circumstellar Disk

Details Color Gradients Detected in the HD 15115 Circumstellar Disk Color Gradients Detected in the HD 15115 Circumstellar Disk

2008-07-21

arxiv.org/abs/0807.3328v2

Astronomy and Astrophysics

Astrophysics

4 pages, 4 figures, emulateapj; accepted to ApJL

Scientific paper

10.1086/592018

We report HST/NICMOS coronagraphic images of the HD 15115 circumstellar disk at 1.1\micron. We find a similar morphology to that seen in the visible and at H band--an edge-on disk that is asymmetric in surface brightness. Several aspects of the 1.1\micron data are different, highlighting the need for multi-wavelength images of each circumstellar disk. We find a flattening to the western surface brightness profile at 1.1\micron interior to 2\arcsec (90 AU) and a warp in the western half of the disk. We measure the surface brightness profiles of the two disk lobes and create a measure of the dust scattering efficiency between 0.55-1.65\micron at 1\arcsec, 2\arcsec, and 3\arcsec. At 2\arcsec the western lobe has a neutral spectrum up to 1.1\micron and a strong absorption or blue spectrum $>$1.1\micron, while a blue trend is seen in the eastern lobe. At 1\arcsec the disk has a red F110W-H color in both lobes.

Affiliated with

Also associated with

No associations

Rating

Color Gradients Detected in the HD 15115 Circumstellar Disk 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 Color Gradients Detected in the HD 15115 Circumstellar Disk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color Gradients Detected in the HD 15115 Circumstellar Disk will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-73088