The Polarimetric and Photometric Variability of HH 30

Details The Polarimetric and Photometric Variability of HH 30 The Polarimetric and Photometric Variability of HH 30

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aj....137.4330d&link_type=abstract

The Astronomical Journal, Volume 137, Issue 5, pp. 4330-4338 (2009).

Astronomy and Astrophysics

Astronomy

3

Accretion, Accretion Disks, Circumstellar Matter, Stars: Individual: Hh 30, Stars: Pre-Main Sequence

Scientific paper

We have obtained ground-based photopolarimetry of the young stellar object HH 30 over the course of one year. Our observations reveal the presence of a dominant periodic modulation of the polarization with a period of 7.49 ± 0.04 days or one of the aliases of this period close to 1 day. There are also suggestions of a weak periodic modulation in the photometry with the same period but a phase displaced by one quarter of a period. These results are in agreement with the lighthouse model for HH 30, in which a beam or shadow from a central source sweeps across the disk. Our observations by themselves appear to be consistent with both of the mechanisms that have been proposed for the lighthouse—asymmetric accretion hot spots on the star or orbiting clumps or voids in the disk—and provide strong quantitative constraints for future models.

Affiliated with

Also associated with

No associations

Rating

The Polarimetric and Photometric Variability of HH 30 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 The Polarimetric and Photometric Variability of HH 30, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Polarimetric and Photometric Variability of HH 30 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1111897