Cepheid Variables in the Antennae

Details Cepheid Variables in the Antennae Cepheid Variables in the Antennae

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1170...29c&link_type=abstract

STELLAR PULSATION: CHALLENGES FOR THEORY AND OBSERVATION: Proceedings of the International Conference. AIP Conference Proceedin

Physics

Cepheids, Dark Energy, Quasars, Active Or Peculiar Galaxies, Objects, And Systems

Scientific paper

An accurate measurement of the Hubble constant provides important constraints on the equation of state of dark energy. Currently, the most robust determination of H0 is based on Cepheid distances to nearby type Ia supernovae. The occurrence of SN 2007sr in the Antennae (NGC 4038/39) provides an important additional calibrator for this method since this galaxy pair is within a distance that Cepheid variables can be resolved with HST.
We have recently obtained a set of 12 epochs of WFPC2 images which we have analyzed using a previously obtained set of ACS data as reference. An earlier WFPC2 image was also included in our study. We present preliminary periods and magnitudes of Cepheids in this galaxy pair.

Affiliated with

Also associated with

No associations

Rating

Cepheid Variables in the Antennae does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cepheid Variables in the Antennae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cepheid Variables in the Antennae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1271581