495 citations
- Association of Universities for Research in AstronomyUS10 papers
- Cerro Tololo Inter-American ObservatoryCL8 papers
- Kitt Peak National ObservatoryUS6 papers
- Lowell ObservatoryUS5 papers
- U.S. National Science FoundationUS4 papers
- Herzberg Institute of AstrophysicsCA3 papers
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4 papers · 1 filter
New Distant Companions to Known Nearby Stars. II. Faint companions of Hipparcos stars and the frequency of wide binary systems
Sebastien Lepine, Bethany Bongiorno
We perform a search for faint, common proper motion companions of Hipparcos stars using the recently published LSPM-north catalog of stars with proper motion mu>0.15 arcsec/yr. Our…
The Recurrent Eclipse of an Unusual Pre--Main-Sequence Star in IC 348
S. Nordhagen, W. Herbst, E. C. Williams +1
The recurrence of a previously documented eclipse of a solar-like pre--main-sequence star in the young cluster IC 348 has been observed. The recurrence interval is 4.7 yr…
The Variability and Rotation of Pre-main Sequence Stars in IC 348: Does Intracluster Environment Influence Stellar Rotation?
S. Nordhagen, W. Herbst, K. L. Rhode +1
A variability study of the young cluster IC 348 at Van Vleck Observatory has been extended to a total of seven years. Twelve new periodic stars have been found in the last two year…
A Survey of Local Group Galaxies Currently Forming Stars. I. UBVRI Photometry of Stars in M31 and M33
Philip Massey, K. A. G. Olsen, Paul W. Hodge +4
We present UBVRI photometry obtained from Mosaic images of M31 and M33 using the KPNO 4-m telescope. The survey covers 2.2 sq degrees of M31, and 0.8 sq degrees of M33, chosen so a…