Landolt BV and Sloan g’r’i’

photometry of 358,963 RAVE stars

Ulisse Munari and Arne Henden

239 ,102 RAVE stars have a Tycho-2 counterpart

377 ,807 stars have a match

in DENIS

399 ,443 RAVE stars have a2MASS counterpart

err(J)=0.023

err(H)=0.032

err(K)=0.026

G0 main sequence dwarfRAVE

to date, 358,963 RAVE stars have been observed by APASS on at least 2 distinct epochs in the Landolt B,V and Sloan g’r’i’ bands.

median of internal errors of the mean on RAVE stars:

0.013 0.011 0.012 0.013 0.018 mag

on average 3.7 epochs

target 6 epochs

median 0.274 arcsec

Landolt (1983, 1992) primary standards

Henden and Munari (2000, 2001, 2006) seconday Landolt standards

Smith et al. (2002) secondary SLOAN standards

Mermilloid (1992)

Hartman et al. (2008)

- BVgri support photometry from APASS now available for 358,963 RAVE stars (and counting)

- median value for the error of the means about 0.013 mag

- no offset/trend and rms=0.025 on Landolt/Sloan photometric standards, about the same as 2MASS JHKs data

- rms of derived photometric temperatures 250 K

- no significant offset with Greg/Jon spectroscopic temperatures from high res APO Echelle observations of 571 well distributed RAVE stars

SUMMARY

- extention toward V=7.5 stars started (essential for accessing the bulk of spectroscopic calibrators)

- inclusion of z’Y band will start soon

- pilot survey of 100 sq.deg in u’ band completed

- analysis of APASS data of PASTEL stars not yet completed but so far promising