Zobrazeno 1 - 10
of 306
pro vyhledávání: '"Mira variable"'
Autor:
Yan Sun, Jingdong Zhang, Bo Zhang, Shuangjing Xu, Xiaofeng Mai, Hao Ding, Wen Chen, Shiming Wen
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
Mira variables are important distance indicators owing to the clear period–luminosity relation at infrared wavelengths. We have compiled a sample of 343 Galactic Miras selected from the American Association of Variable Star Observers database and G
Externí odkaz:
https://doaj.org/article/e3d171084cc64e54b94a8aae53715acb
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 59 (2024)
We present a sample of 335 Mira variables, extracted from DR9 of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) survey. These variables are characterized by the Balmer emissions (H δ , H γ , H β , and H α ) and the metal e
Externí odkaz:
https://doaj.org/article/032e94d7ce2145b1a7bafaf8795e6a27
Autor:
Caroline D. Huang, Wenlong Yuan, Adam G. Riess, Warren Hack, Patricia A. Whitelock, Nadia L. Zakamska, Stefano Casertano, Lucas M. Macri, Massimo Marengo, John W. Menzies, Randall K. Smith
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 2, p 83 (2024)
The giant spiral galaxy M101 is host to the nearest recent Type Ia supernova (SN 2011fe) and thus has been extensively monitored in the near-infrared to study the late-time light curve of the SN. Leveraging this existing baseline of observations, we
Externí odkaz:
https://doaj.org/article/d7bb80ad43e44eae888016909a133243
Autor:
Steven R. Goldman, Ravi Sankrit, Edward Montiel, Sean Garner, Nathan Wolthuis, Nicole Karnath
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 1, p 14 (2024)
We have targeted the dusty symbiotic Mira system HM Sge with four instruments from the IR to the UV. We have used these observations along with archival observations to study how the system has been evolving after its 1975 nova-like outburst. We have
Externí odkaz:
https://doaj.org/article/bb6d1413c3224439a4ac43355021a484
Publikováno v:
The Astronomical Journal, Vol 166, Iss 3, p 96 (2023)
Based on 14 Miras located in seven globular clusters, we derived the first gr -band period–luminosity (PL) at maximum light for the large-amplitude Mira variables using the multiyear light-curve data collected from the Zwicky Transient Facility (ZT
Externí odkaz:
https://doaj.org/article/84a59bbf92d34a6faec3b5cc7b7809d9
Autor:
Jia-Yu Ou, Chow-Choong Ngeow, Anupam Bhardwaj, Matthew J. Graham, Russ R. Laher, Frank J. Masci, Reed Riddle
Publikováno v:
The Astronomical Journal, Vol 165, Iss 4, p 137 (2023)
We present a systematic analysis to determine and improve the pulsation periods of 1637 known long-period Mira variables in M33 using gri -band light curves spanning ∼18 yr from several surveys, including the M33 variability survey, Panoramic Surve
Externí odkaz:
https://doaj.org/article/c082d59ea27f4270afb326c3288912a5
Autor:
Patryk Iwanek, Radosław Poleski, Szymon Kozłowski, Igor Soszyński, Paweł Pietrukowicz, Makiko Ban, Jan Skowron, Przemysław Mróz, Marcin Wrona, Andrzej Udalski, Michał K. Szymański, Dorota M. Skowron, Krzysztof Ulaczyk, Mariusz Gromadzki, Krzysztof Rybicki, Milena Ratajczak
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 264, Iss 1, p 20 (2023)
We study the three-dimensional structure of the Milky Way using 65,981 Mira variable stars discovered by the Optical Gravitational Lensing Experiment survey. The spatial distribution of the Mira stars is analyzed with a model containing three barred
Externí odkaz:
https://doaj.org/article/509afe0129c04891a2c42c9137b0dc4e
Autor:
Caroline D. Huang, Margarita Karovska, Warren Hack, John C. Raymond, Rodolfo Montez Jr., Vinay L. Kashyap
Publikováno v:
The Astrophysical Journal, Vol 947, Iss 1, p 11 (2023)
Astrophysical jets are present in a range of environments, including young stellar objects, X-ray binaries, and active galactic nuclei, but their formation is still not fully understood. As one of the nearest symbiotic binary stars, R Aquarii ( D ∼
Externí odkaz:
https://doaj.org/article/a2a7d936e59d4319bb8a54cb9ce622f3
Autor:
Mann, Katrina
Publikováno v:
Cinema Journal, 2004 Oct 01. 44(1), 49-68.
Externí odkaz:
https://www.jstor.org/stable/3661172
Autor:
Goulding, Susan
Publikováno v:
Modern Language Studies, 2002 Oct 01. 32(2), 69-89.
Externí odkaz:
https://www.jstor.org/stable/3252043