Publications.

Here are some of my publications.

Jacobson, H. R., Friel, E. D., Pilachowski, C. A. 2008, Astronomical Journal Abundances of Red Giants in Old Open Clusters. III. NGC 7142

Jacobson, H. R., Pilachowski, C. A, Friel, E. D., "Exploring the Milky Way Disk Abundance Transition Zone Rgc~10 kpc with Open Clusters," 2007, presented at "Formation and Evolution of Galaxy Disks", Rome, Italy (San Francisco: ASP Conference Series), in press.

Jacobson, H. R., Friel, E. D., Pilachowski, C. A. 2007, Astronomical Journal Na, Al, and O Abundances of Open Clusters NGC 7142, NGC 6939, and IC 4756

Jacobson, H. R., Pilachowski, C. A., Friel, E. D. 2005, American Astronomical Society Meeting Abstracts Na and Al Abundances of Open Clusters IC 4756, NGC 6939, and NGC 7142

Friel, E. D., Jacobson, H. R., & Pilachowski, C. A. 2005, Astronomical Journal Abundances of Red Giants in Old Open Clusters. II. Berkeley 17

Denmark, D. J., Sarajedini, A., Deliyannis, C. P., Cummings, J., & Jacobson, H. 2004, American Astronomical Society Meeting Abstracts WIYN Open Cluster Study MOSAIC Photometry of M38

Friel, E. D., Jacobson, H. R., Barrett, E., Pilachowski, C. A., Balachandran, S. C., & Fullton, L. 2004, Origin and Evolution of the Elements Collinder 261: Abundances in an Old Disk Cluster

Jacobson, H. R. & Pilachowski, C. A. 2003, American Astronomical Society Meeting Abstracts Infalling Planetesimals in Young Star Clusters

Friel, Eileen D., Jacobson, Heather R., Barrett, Elizabeth, Fullton, Laura, Balachandran, Suchitra C., & Pilachowski, Catherine A. 2003, Astronomical Journal Abundances of Red Giants in the Old Open Cluster Collinder 261

Jacobson, H. R., Cummings, J., Deliyannis, C. P., Steinhauer, A., & Sarajedini, A. 2002, Bulletin of the American Astronomical Society WIYN Open Cluster Study: Precision UBVRI Photometry of the Intermediate-Aged Open Cluster M38

Deliyannis, C. P., Jacobson, H., Cummings, J., Steinhauer, A., & Sarajedini, A. 2002, Bulletin of the American Astronomical Society WIYN Open Cluster Study: Precision UBVRI Photometry of the Intermediate-Aged Open Cluster M37

Cummings, J., Jacobson, H., Deliyannis, C. P., Steinhauer, A., & Sarajedini, A. 2002, Bulletin of the American Astronomical Society WIYN Open Cluster Study: Precision UBVRI Photometry of the Young Open Cluster M36

Mueller, K. E., Shirley, Y. L., Evans, N. J., II, & Jacobson, H. R. 2002, Astronomical Society of the Pacific Conference Series Dust Continuum Observations of Massive Star Forming Regions

Jacobson, H. R., Friel, E. D., Pilachowski, C. A., Balachandran, S., Barrett, E., & Fullton, L. 2001, Bulletin of the American Astronomical Society Chemical Abundances of Old Open Cluster Collinder 261