Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Gray, Richard O."'
Autor:
Gray, Richard O., Corbally, Christopher J., Briley, Michael M., McKay, Adam, Sims, Forrest, Boyd, David, Boussin, Christophe, McGahee, Courtney E., Buchheim, Robert, Walker, Gary, Iadevaia, David, Fernandez, David Cejudo, Lemay, Damien, Martin, Jack, Grubb, Jim, Stiewing, Albert, Daglen, Joseph, Shank, Keith, Andrews, Sydney, Barnhardt, Nick, Clark, Rebekah, Corman, Hunter, Gomes, Sabina, Jonnalagadda, Agastya, McDaries, Theo, Mills, Ava, Newsom, Will, Slate, Andrew, Watts, Michael
Publikováno v:
Astronomical Journal 166, 161-170 (2023)
TU Tau (= HD 38218 = HIP 27135) is a binary system consisting of a C-N carbon star primary and an A-type secondary. We report on new photometry and spectroscopy which tracked the recent disappearance of the A-star secondary. The dimming of the A-star
Externí odkaz:
http://arxiv.org/abs/2308.10972
Autor:
Murphy, Simon J., Gray, Richard O., Corbally, Christopher J., Kuehn, Charles, Bedding, Timothy R., Killam, Josiah
The $\lambda$ Boo stars are chemically peculiar A-type stars whose abundance anomalies are associated with the accretion of metal-poor material. We searched for $\lambda$ Boo stars in the southern hemisphere in a targeted spectroscopic survey of meta
Externí odkaz:
http://arxiv.org/abs/2008.02392
We report the results of a search for candidate Li-rich giants among 569,738 stars of the SDSS DR10 dataset. With small variations, our approach is based on that taken in an earlier search for EMP/CEMP stars and uses the same dataset. As part of our
Externí odkaz:
http://arxiv.org/abs/1806.10295
Autor:
Murphy, Simon J., Corbally, Christopher J., Gray, Richard O., Cheng, Kwang-Ping, Neff, James E., Koen, Chris, Kuehn, Charles A., Newsome, Ian, Riggs, Quinlin
The literature on the $\lambda$ Boo stars has grown to become somewhat heterogenous, as different authors have applied different criteria across the UV, optical and infrared regions to determine the membership status of $\lambda$ Boo candidates. We a
Externí odkaz:
http://arxiv.org/abs/1508.03633
Autor:
De Cat, Peter, Fu, Jianning, Yang, Xiaohu, Ren, Anbing, Frasca, Antonio, Molenda-Żakowicz, Joanna, Catanzaro, Giovanni, Gray, Richard O., Corbally, Chris J., Shi, Jianrong, Zhang, Haotong, Luo, Ali
The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) at the Xinglong observatory in China is a new 4-m telescope equipped with 4,000 optical fibers. In 2010, we initiated the LAMOST-Kepler project. We requested to observe the full f
Externí odkaz:
http://arxiv.org/abs/1411.0913
The data archives from space and ground-based telescopes present a vast opportunity for the astronomical community. We describe a classification encoding system for stellar spectra designed for archival databases that organizes the spectral data by "
Externí odkaz:
http://arxiv.org/abs/1112.3617
Known bright S stars, recognized as such by their enhanced s-process abundances and C/O ratio, are typically members of the asymptotic giant branch (AGB) or the red giant branch (RGB). Few modern digital spectra for these objects have been published,
Externí odkaz:
http://arxiv.org/abs/1107.4029
Autor:
Rosenberg, Daniel E., Gray, Richard O., Mashburn, Jonathan, Swenson, Aaron W., McGahee, Courtney E.
Publikováno v:
Publications of the Astronomical Society of the Pacific, 2018 Jun 01. 130(988), 1-9.
Externí odkaz:
https://www.jstor.org/stable/26660603
Autor:
Miner, James R., Moore, Johanna C., Austad, Erin J., Plummer, David, Hubbard, Laura, Gray, Richard O.
Publikováno v:
In Annals of Emergency Medicine May 2015 65(5):479-488
Autor:
Corbally, Christopher J.1 (AUTHOR) corbally@as.arizona.edu, Gray, Richard O.2 (AUTHOR) grayro@appstate.edu, Sterken, Christiaan (AUTHOR), Hearnshaw, John (AUTHOR), Valls-Gabaud, David (AUTHOR)
Publikováno v:
Proceedings of the International Astronomical Union. Dec2018, Vol. 13 Issue 1S349, p489-493. 5p.