activity
19952011
most citedThe Indo-U.S. Library of Coude Feed Stellar Spectra

609 citations · 2.1k across the 32 of their papers we have counts for

collaborators

32 papers

astro-ph.GA2011★ 164 cited

Star Clusters in M31: II. Old Cluster Metallicities and Ages from Hectospec Data

Nelson Caldwell, Ricardo Schiavon, Heather Morrison +2

We present new high signal-to-noise spectroscopic data on the M31 globular cluster system, obtained with the Hectospec multifiber spectrograph on the 6.5m MMT. More than 300 cluste…

astro-ph.GA2010★ 17 cited

Galaxies M32 and NGC 5102 Confirm a Near-infrared Spectroscopic Chronometer

Jesse Miner, James A. Rose, Gerald Cecil

We present near infrared (NIR) IRTF/SpeX spectra of the intermediate-age galaxy M32 and the post-starburst galaxy NGC 5102. We show that features from thermally-pulsing asymptotic…

astro-ph.CO2010★ 25 cited

Stellar Population Trends in S0 Galaxies

L. C. Prochaska Chamberlain, Stephane Courteau, Michael McDonald +1

We present stellar population age and metallicity trends for a sample of 59 S0 galaxies based on optical SDSS and NIR J & H photometry. When combined with optical g and r passband…

astro-ph.CO2009★ 15 cited

Star Formation in Partially Gas-Depleted Spiral Galaxies

James A. Rose, Paul Robertson, Jesse Miner +1

Broadband B and R and H-alpha images have been obtained with the 4.1-m SOAR telescope atop Cerro Pachon, Chile for 29 spiral galaxies in the Pegasus I galaxy cluster and for 18 spi…

astro-ph.CO2009★ 6 cited

A Star in the M31 Giant Stream: the Highest Negative Stellar Velocity Known

N. Caldwell, H. Morrison, S. J. Kenyon +3

We report on a single star, B030D, observed as part of a large survey of objects in M31, which has the unusual radial velocity of -780 km/s. Based on details of its spectrum, we fi…

astro-ph2008★ 140 cited

Star Clusters in M31: I. A Catalog and a Study of the Young Clusters

Nelson Caldwell, Paul Harding, Heather Morrison +3

We present an updated catalog of 1300 objects in the field of M31, including 670 likely star clusters of various types. Archival images were inspected to confirm cluster classifica…