SIMBAD references

2003ApJ...593L.121W - Astrophys. J., 593, L121-L124 (2003/August-3)

Limits on eclipses of the pre-main-sequence star KH 15D in the first half of the 20th century.


Abstract (from CDS):

Over the last decade, the pre-main-sequence star KH 15D has exhibited periodic eclipses that are surprisingly deep (∼3 mag) and long-lasting (∼40% of the 48.4 day period). The cause of the eclipses is unknown, but it could be a feature in a nearly edge-on protoplanetary disk. Here we report on an analysis of archival photographs of KH 15D from the Harvard College Observatory plate collection, most of which were taken during the years 1913-1951. During this time range, the data are consistent with no eclipses; the duty cycle of 1 mag eclipses was less than 20%. The decadal timescale of this change in eclipse behavior is compatible with the expected timescale of protoplanet/disk interactions. Archival images from more recent epochs should reveal the onset of the eclipses.

Abstract Copyright:

Journal keyword(s): Galaxy: Open Clusters and Associations: Individual: NGC Number: NGC 2264 - Stars: Planetary Systems: Protoplanetary Disks - Stars: Individual: Alphanumeric: KH 15D - Stars: Pre-Main-Sequence

Status at CDS:  

Simbad objects: 13

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2003ApJ...593L.121W and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact