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pro vyhledávání: '"Milliman, Katelyn"'
We investigate barium (Ba) abundances in blue straggler stars (BSSs) in two open clusters, NGC 7789 (1.6 Gyr) and M67 (4 Gyr), as signatures of asymptotic-giant-branch (AGB) mass transfer. We combine our findings with previous Ba abundance analyses i
Externí odkaz:
http://arxiv.org/abs/2405.20242
Autor:
Nine, Andrew C., Milliman, Katelyn E., Mathieu, Robert D., Geller, Aaron M., Leiner, Emily M., Platais, Imants, Tofflemire, Benjamin M.
We introduce the stellar sample of the WIYN Open Cluster Study radial-velocity survey for the rich open cluster NGC 7789 (1.6 Gyr, [Fe/H] = +0.02). This sample lies within an 18$'$ circular radius from the cluster center (10 pc in projection, or abou
Externí odkaz:
http://arxiv.org/abs/2003.09732
Autor:
Milliman, Katelyn E., Leiner, Emily, Mathieu, Robert D., Tofflemire, Benjamin M., Platais, Imants
In an optical color-magnitude diagram sub-subgiants (SSGs) lie red of the main sequence and fainter than the base of the red giant branch in a region not easily populated by standard stellar-evolution pathways. In this paper, we present multi-epoch r
Externí odkaz:
http://arxiv.org/abs/1604.02581
Autor:
Brewer, Lauren N., Sandquist, Eric L., Mathieu, Robert D., Milliman, Katelyn, Geller, Aaron M., Jeffries Jr., Mark W., Orosz, Jerome A., Brogaard, Karsten, Platais, Imants, Bruntt, Hans, Grundahl, Frank, Stello, Dennis, Frandsen, Soeren
As part of our study of the old (~2.5 Gyr) open cluster NGC 6819 in the Kepler field, we present photometric (Kepler and ground-based BVRcIc) and spectroscopic observations of the detached eclipsing binary WOCS 24009 (Auner 665; KIC 5023948) with a s
Externí odkaz:
http://arxiv.org/abs/1601.04069
We present the barium surface abundance of 12 blue stragglers (BSs) and 18 main-sequence (MS) stars in the intermediate-age open cluster NGC 6819 (2.5 Gyr) based on spectra obtained from the Hydra Multi-object Spectrograph on the WIYN 3.5 m telescope
Externí odkaz:
http://arxiv.org/abs/1508.01236
Autor:
Milliman, Katelyn E., Mathieu, Robert D., Geller, Aaron M., Gosnell, Natalie M., Meibom, Søren, Platais, Imants
Publikováno v:
Milliman K. E., Mathieu R. D., Geller A. M., et al., 2014, AJ, 148, 38
We present the current state of the WOCS radial-velocity (RV) survey for the rich open cluster NGC 6819 (2.5 Gyr) including 93 spectroscopic binary orbits with periods ranging from 1.5 to 8,000 days. These results are the product of our ongoing RV su
Externí odkaz:
http://arxiv.org/abs/1408.0239
Autor:
Jeffries, Jr., Mark W., Sandquist, Eric L., Mathieu, Robert D., Geller, Aaron M., Orosz, Jerome A., Milliman, Katelyn E., Brewer, Lauren N., Platais, Imants, Brogaard, Karsten, Grundahl, Frank, Frandsen, Soeren, Dotter, Aaron, Stello, Dennis
We analyze extensive BVR_cI_c time-series photometry and radial-velocity measurements for WOCS 40007 (Auner 259; KIC 5113053), a double-lined detached eclipsing binary and a member of the open cluster NGC 6819. Utilizing photometric observations from
Externí odkaz:
http://arxiv.org/abs/1307.0442
Autor:
Sandquist, Eric L., Mathieu, Robert D., Brogaard, Karsten, Meibom, Soren, Geller, Aaron M., Orosz, Jerome A., Milliman, Katelyn E., Jeffries Jr, Mark W., Brewer, Lauren N., Platais, Imants, Grundahl, Frank, Bruntt, Hans, Frandsen, Soeren, Stello, Dennis
We present the discovery of the totally eclipsing long-period (P = 771.8 d) binary system WOCS 23009 in the old open cluster NGC 6819 that contains both an evolved star near central hydrogen exhaustion and a low-mass (0.45 Msun) star. This system was
Externí odkaz:
http://arxiv.org/abs/1211.2527
Akademický článek
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Autor:
Mark W, Jr Jeffries, Sandquist, Eric L., Mathieu, Robert D., Geller, Aaron M., Orosz, Jerome A., Milliman, Katelyn E., Brewer, Lauren N., Imants Platais, Karsten Brogaard, Frank Grundahl, Soeren Frandsen, Aaron Dotter, Dennis Stello
Publikováno v:
Aarhus University
Jeffries, M W J, Sandquist, E L, Mathieu, R D, Geller, A M, Orosz, J A, Milliman, K E, Brewer, L N, Platais, I, Brogaard, K, Grundahl, F, Frandsen, S, Dotter, A & Stello, D 2013, ' WOCS 40007: A Detached Eclipsing Binary near the Turnoff of the Open Cluster NGC 6819 ', Astronomical Journal, vol. 146, no. 3, 58 . < http://adsabs.harvard.edu/abs/2013AJ....146...58J >
Jeffries, M W J, Sandquist, E L, Mathieu, R D, Geller, A M, Orosz, J A, Milliman, K E, Brewer, L N, Platais, I, Brogaard, K, Grundahl, F, Frandsen, S, Dotter, A & Stello, D 2013, ' WOCS 40007: A Detached Eclipsing Binary near the Turnoff of the Open Cluster NGC 6819 ', Astronomical Journal, vol. 146, no. 3, 58 . < http://adsabs.harvard.edu/abs/2013AJ....146...58J >
We analyze extensive BVRcIc time-series photometry and radial-velocity measurements for WOCS 40007 (Auner 259; KIC 5113053), a double-lined detached eclipsing binary and a member of the open cluster NGC 6819. Utilizing photometric observations from t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::916e072a355708e96726bc2cf37ed956
https://pure.au.dk/portal/en/publications/wocs-40007-a-detached-eclipsing-binary-near-the-turnoff-of-the-open-cluster-ngc6819(7a09ab51-85a9-4a67-9ac9-c286bb322073).html
https://pure.au.dk/portal/en/publications/wocs-40007-a-detached-eclipsing-binary-near-the-turnoff-of-the-open-cluster-ngc6819(7a09ab51-85a9-4a67-9ac9-c286bb322073).html