Sandage, Allan; Lubin, Lori M.; Vandenberg, Don A. The Age of the Oldest Stars in the Local Galactic Disk from HipparcosParallaxes of G and K Subgiants. Publications of the Astronomical Society of the Pacific. 2003, 115 (812): 1187. Bibcode:2003PASP..115.1187S. arXiv:astro-ph/0307128. doi:10.1086/378243.
Pancino, E.; Mucciarelli, A.; Sbordone, L.; Bellazzini, M.; Pasquini, L.; Monaco, L.; Ferraro, F. R. The subgiant branch ofω Centauri seen through high-resolution spectroscopy. Astronomy & Astrophysics. 2011, 527: A18. Bibcode:2011A&A...527A..18P. arXiv:1012.4756. doi:10.1051/0004-6361/201016024.
doi.org
Sandage, Allan; Lubin, Lori M.; Vandenberg, Don A. The Age of the Oldest Stars in the Local Galactic Disk from HipparcosParallaxes of G and K Subgiants. Publications of the Astronomical Society of the Pacific. 2003, 115 (812): 1187. Bibcode:2003PASP..115.1187S. arXiv:astro-ph/0307128. doi:10.1086/378243.
Ayres, Thomas R.; Simon, Theodore; Stern, Robert A.; Drake, Stephen A.; Wood, Brian E.; Brown, Alexander. The Coronae of Moderate-Mass Giants in the Hertzsprung Gap and the Clump. The Astrophysical Journal. 1998, 496: 428. Bibcode:1998ApJ...496..428A. doi:10.1086/305347.
Pols, Onno R.; Schröder, Klaus-Peter; Hurley, Jarrod R.; Tout, Christopher A.; Eggleton, Peter P. Stellar evolution models for Z = 0.0001 to 0.03. Monthly Notices of the Royal Astronomical Society. 1998, 298 (2): 525. Bibcode:1998MNRAS.298..525P. doi:10.1046/j.1365-8711.1998.01658.x.
Sandage, Allan; Lubin, Lori M.; Vandenberg, Don A. The Age of the Oldest Stars in the Local Galactic Disk from HipparcosParallaxes of G and K Subgiants. Publications of the Astronomical Society of the Pacific. 2003, 115 (812): 1187. Bibcode:2003PASP..115.1187S. arXiv:astro-ph/0307128. doi:10.1086/378243.
Morgan, William Wilson; Keenan, Philip Childs; Kellman, Edith. An atlas of stellar spectra, with an outline of spectral classification. Chicago. 1943. Bibcode:1943assw.book.....M.
Garcia, B. A list of MK standard stars. Bulletin d'Information du Centre de Donnees Stellaires. 1989, 36: 27. Bibcode:1989BICDS..36...27G.
Lèbre, A.; De Laverny, P.; De Medeiros, J. R.; Charbonnel, C.; Da Silva, L. Lithium and rotation on the subgiant branch. I. Observations and spectral analysis. Astronomy and Astrophysics. 1999, 345: 936. Bibcode:1999A&A...345..936L.
Ayres, Thomas R.; Simon, Theodore; Stern, Robert A.; Drake, Stephen A.; Wood, Brian E.; Brown, Alexander. The Coronae of Moderate-Mass Giants in the Hertzsprung Gap and the Clump. The Astrophysical Journal. 1998, 496: 428. Bibcode:1998ApJ...496..428A. doi:10.1086/305347.
Pols, Onno R.; Schröder, Klaus-Peter; Hurley, Jarrod R.; Tout, Christopher A.; Eggleton, Peter P. Stellar evolution models for Z = 0.0001 to 0.03. Monthly Notices of the Royal Astronomical Society. 1998, 298 (2): 525. Bibcode:1998MNRAS.298..525P. doi:10.1046/j.1365-8711.1998.01658.x.
Pancino, E.; Mucciarelli, A.; Sbordone, L.; Bellazzini, M.; Pasquini, L.; Monaco, L.; Ferraro, F. R. The subgiant branch ofω Centauri seen through high-resolution spectroscopy. Astronomy & Astrophysics. 2011, 527: A18. Bibcode:2011A&A...527A..18P. arXiv:1012.4756. doi:10.1051/0004-6361/201016024.
Ayres, Thomas R. A Far-Ultraviolet Study of the Bright Delta Scuti Variable Beta Cassiopeia. IUE Proposal ID #DSGTA. 1984. Bibcode:1984iue..prop.1747A.