Adam L. Kraus

The Coevality of Young Binary Systems (2009)

Kraus, Adam L., Hillenbrand, Lynne A.

Multiple star systems are commonly assumed to form coevally; they thus provide the anchor for most calibrations of stellar evolutionary models. In this paper, we study the binary population of the...

Unusually Wide Binaries: Are They Wide or Unusual? (2009)

Kraus, Adam L., Hillenbrand, Lynne A.

We describe an astrometric and spectroscopic campaign to confirm the youth and association of a complete sample of candidate wide companions in Taurus and Upper Sco. Our survey found 15 new binary...

The Coevality of Young Binary Systems (2009)

Kraus, Adam L., Hillenbrand, Lynne A.

Multiple star systems are commonly assumed to form coevally; they thus provide the anchor for most calibrations of stellar evolutionary models. In this paper we study the binary population of the...

Multiple star formation (2009)

Kraus, Adam L.

In this thesis, I present a study of the formation and evolution of stars, particularly multiple stellar systems. Binary stars provide a key constraint on star formation because any successful model...

Unusually Wide Binaries: Are They Wide or Unusual? (2009)

Kraus, Adam L., Hillenbrand, Lynne A.

We describe an astrometric and spectroscopic campaign to confirm the youth and association of a complete sample of candidate wide companions in Taurus and Upper Sco. Our survey found fifteen new...

An Upper Mass Limit on a Red Supergiant Progenitor for the Type II-Plateau Supernova SN 2006my (2008)

Leonard, Douglas C., Gal-Yam, Avishay, Fox, Derek B., Cameron, P. B., Johansson, Erik M., Kraus, Adam L., ...

We analyze two pre-supernova (SN) and three post-SN high-resolution images of the site of the Type II-Plateau supernova SN 2006my in an effort to either detect the progenitor star or to constrain its...

Spatial distributions of young stars (2008)

Kraus, Adam L., Hillenbrand, Lynne A.

We analyze the spatial distribution of young stars in Taurus-Auriga and Upper Sco, as determined from the two-point correlation function (i.e., the mean surface density of neighbors). The...

An Upper Mass Limit on a Red Supergiant Progenitor for the Type II-Plateau Supernova SN 2006my (2008)

Leonard, Douglas C., Gal-Yam, Avishay, Fox, Derek B., Cameron, P. B., Johansson, Erik M., Kraus, Adam L., ...

We analyze two pre-supernova (SN) and three post-SN high-resolution images of the site of the Type II-Plateau supernova SN 2006my in an effort to either detect the progenitor star or to constrain its...

Spatial Distributions of Young Stars (2008)

Kraus, Adam L., Hillenbrand, Lynne A.

We analyze the spatial distributions of young stars in Taurus-Auriga and Upper Sco as determined from the two-point correlation function (i.e. the mean surface density of neighbors). The...

Mapping the Shores of the Brown Dwarf Desert. I. Upper Scorpius (2008)

Kraus, Adam L., Ireland, Michael J., Martinache, Frantz, Lloyd, James P.

We present the results of a survey for stellar and substellar companions to 82 young stars in the nearby OB association Upper Scorpius. This survey used nonredundant aperture mask interferometry to...

Mapping the Shores of the Brown Dwarf Desert I.: Upper Scorpius (2008)

Kraus, Adam L., Ireland, Michael J., Martinache, Frantz, Lloyd, James P.

We present the results of a survey for stellar and substellar companions to 82 young stars in the nearby OB association Upper Scorpius. This survey used nonredundant aperture-mask interferometry to...

The Stellar Populations of Praesepe and Coma Berenices (2007)

Kraus, Adam L., Hillenbrand, Lynne A.

We present the results of a stellar membership survey of the nearby open clusters Praesepe and Coma Berenices. We have combined archival survey data from the SDSS, 2MASS, USNOB1.0, and UCAC-2.0...

USco1606-1935: An Unusually Wide Low-Mass Triple System? (2007)

Kraus, Adam L., Hillenbrand, Lynne A.

We present photometric, astrometric, and spectroscopic observations of USco160611.9-193532 AB, a candidate ultrawide (~1600 AU), low-mass (M_tot~0.4 M_sun) multiple system in the nearby OB...

The Role of Mass and Environment in Multiple Star Formation: A 2MASS Survey of Wide Multiplicity in Three Young Associations (2007)

Kraus, Adam L., Hillenbrand, Lynne A.

We present the results of a search for wide binary systems among 783 members of three nearby young associations: Taurus-Auriga, Chamaeleon I, and two subgroups of Upper Scorpius. Near-infrared (JHK)...