121 citations · 465 across the 8 of their papers we have counts for
8 papers
A Candidate Young Massive Planet in Orbit around the Classical T Tauri Star CI Tau
Christopher M. Johns-Krull, Jacob N. McLane, L. Prato +10
The ~2 Myr old classical T Tauri star CI Tau shows periodic variability in its radial velocity (RV) variations measured at infrared (IR) and optical wavelengths. We find that these…
The First U.S. Naval Observatory Robotic Astrometric Telescope Catalog (URAT1)
Norbert Zacharias, Charlie Finch, John Subasavage +14
URAT1 is an observational, astrometric catalog covering most of the Dec >= -15 deg area and a magnitude range of about R = 3 to 18.5. Accurate positions (typically 10 to 30 mas sta…
Follow-Up Observations of PTFO 8-8695: A 3 MYr Old T-Tauri Star Hosting a Jupiter-mass Planetary Candidate
David R. Ciardi, J. C. van Eyken, J. W. Barnes +13
We present Spitzer 4.5\micron\ light curve observations, Keck NIRSPEC radial velocity observations, and LCOGT optical light curve observations of PTFO~8-8695, which may host a Jupi…
The Closest M-Dwarf Quadruple System to the Sun
Cassy L. Davison, Russel J. White, Wei-Chun Jao +8
We report new infrared radial velocity measurements obtained with CSHELL at NASA's Infrared Telescope Facility that reveal the M3.5 dwarf GJ 867B to be a single-lined spectroscopic…
A Search for Giant Planet Companions to T Tauri Stars
Christopher J. Crockett, Naved I. Mahmud, L. Prato +4
We present results from an ongoing multiwavelength radial velocity (RV) survey of the Taurus-Auriga star forming region as part of our effort to identify pre--main sequence giant p…
Starspot-induced optical and infrared radial velocity variability in T Tauri star Hubble 4
Naved I. Mahmud, Christopher J. Crockett, Christopher M. Johns-Krull +4
We report optical (6150 Ang) and K-band (2.3 micron) radial velocities obtained over two years for the pre-main sequence weak-lined T Tauri star Hubble I 4. We detect periodic and…
Precision radial velocities with CSHELL
Christopher J. Crockett, Naved I. Mahmud, Lisa Prato +3
Radial velocity identification of extrasolar planets has historically been dominated by optical surveys. Interest in expanding exoplanet searches to M dwarfs and young stars, howev…
The Formation and Evolution of Planetary Systems: The Search for and Characterization of Young Planets
Charles Beichman, Isabelle Baraffe, Christopher Crockett +16
Despite the revolution in our knowledge resulting from the detection of planets around mature stars, we know almost nothing about planets orbiting young stars because rapid rotatio…