SIMBAD references

2001ApJ...554L.201H - Astrophys. J., 554, L201-L204 (2001/June-3)

Eclipses by a circumstellar dust feature in the pre-main-sequence star KH 15D.

HAMILTON C.M., HERBST W., SHIH C. and FERRO A.J.

Abstract (from CDS):

Photometry and spectroscopy of the unique pre-main-sequence eclipsing object KH 15D in the young cluster NGC 2264 are presented. The orbital period is 48.34 days, and both the length (∼16 days) and depth (∼3 mag) of the eclipse have increased with time. A brightening near the time of central eclipse is confirmed in the recent data but at a much smaller amplitude than was originally seen. Spectra taken when the star is bright show that the primary is a weak T Tauri star of spectral type K7. During eclipse there is no detectable change in spectral type or reddening, indicating that the obscuration is caused by rather large dust grains and/or macroscopic objects. Evidently, the star is eclipsed by an extended feature in its circumstellar disk orbiting with a semimajor axis of ∼0.2 AU. Continued photometric monitoring should allow us to probe the disk structure with a spatial resolution of ∼3x106 km or better.

Abstract Copyright:

Journal keyword(s): Galaxy: Open Clusters and Associations: Individual: NGC Number: NGC 2264 - Stars: Pre-Main-Sequence - Stars: Rotation

CDS comments: KH 15D = Cl* NGC 2264 VVO 15D

Simbad objects: 3

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2020.12.05-09:02:18

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