5 papers
Halo Luminosity Function From Photometric Calibration of the Revised NLTT
Andrew Gould, Juna A. Kollmeier, Julio Chaname +1
We calibrate the photographic photometry of the revised New Luyten Two-Tenths catalog (rNLTT) by matching 3448 rNLTT stars to the Sloan Digital Sky Survey (SDSS). The correction is…
Revised NLTT
Samir Salim, Andrew Gould
Revised NLTT (New Luyten Catalogue of Stars With Proper Motions Larger than Two Tenths of an Arcsecond) contains improved astrometry and new optical/infrared photometry for the vas…
Stellar Mass Function From SIM Astrometry/Photometry
Andrew Gould, Samir Salim
By combining SIM observations with ground-based photometry, one can completely solve microlensing events seen toward the Galactic bulge. One could measure the mass, distance, and t…
Photometric Microlens Parallaxes with SIM
Andrew Gould, Samir Salim
Astrometric measurements of microlensing events can in principle determine both the "parallax" \tilde r_E and the "proper motion" μof an individual event which (combined with the E…
Empirical Calibration of Hubble Space Telescope WFPC2 F606W and F814W Photometry
Samir Salim, Andrew Gould
Using the ground-based V and I photometry of a sample of stars from the Groth Strip, we obtain the first empirical calibration of the F606W and F814W Hubble Space Telescope WFPC2 f…