LP 40-365

**LP 40-365**
	; LP 40-365在1955年至1995年間的切向運動。視場範圍為8 × 8弧分。; 图片来源：數位化巡天（英语：Digitized Sky Survey）
觀測資料; 曆元 J2000
星座	小熊座
星官
赤經	14h 06m 35.45s
赤緯	+74° 18′ 58.0″
視星等（V）	15.51 ± 0.09
特性
光谱分类	D
天体测定
徑向速度 (Rv)	498 km/s
自行 (μ)	赤经：−56 ± 7 mas/yr ; 赤纬：148 ± 7 mas/yr
距离	632 pc
绝对星等 (MV)	8.14+0.60; −0.90
詳細資料
質量	0.14 ± 0.01 M☉
半徑	0.078+0.040; −0.020 R☉
表面重力 (log g)	5.80+0.20; −0.35
溫度	10100+250; −350 K
自轉速度 (v sin i)	30.5 ± 2.0 km/s
其他命名
	2MASS J14063545+7418579
參考資料庫
SIMBAD	资料

LP 40-365是在小熊座的一顆低質量白矮星。它具有非常不尋常的元素組成，缺乏氫、氦或碳，並正以高速穿過銀河。它可能是在一顆未能完全摧毀其宿主恆星的次發光的Iax型超新星中產生的^[2]^[4]^[5]。「LP」這個名字來源於20世紀60年代出現的Luyten-Palomar自行目錄^[6]。這顆恆星在另一個目錄的名稱是「GD 492」^[3]。這顆恆星被歸類為吉克拉斯天體（英语：Giclas object），亨利·李·吉克拉斯在1970年將其命名為「GD 492」^[7]。

參考資料

^ ^1.0 ^1.1 Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). CDS/ADC Collection of Electronic Catalogues. 2003, 2246: II/246 [2024-05-17]. Bibcode:2003yCat.2246....0C. （原始内容存档于2021-04-21）.
^ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 ^2.6 ^2.7 Vennes, Stephane; Nemeth, Peter; Kawka, Adela; Thorstensen, John R.; Khalack, Viktor; Ferrario, Lilia; Alper, Erek H. An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova. Science. 18 August 2017, 357 (6352): 680–683. Bibcode:2017Sci...357..680V. PMID 28818942. S2CID 24141207. arXiv:1708.05568 . doi:10.1126/science.aam8378.
^ ^3.0 ^3.1 ^3.2 GD 492. SIMBAD. 斯特拉斯堡天文資料中心.
^ Science Press Release. Astroserver.org. [17 August 2017]. （原始内容存档于2022-07-05）.
^ Javier Barbuzano. The White Dwarf That Survived. Sky & Telescope. 17 August 2017 [2018-04-27]. （原始内容存档于2020-02-15）.
^ Luyten, W. J. Proper Motion Survey with the 48 inch Schmidt Telescope. University of Minnesota. 1963–1981.
^ Giclas, Henry L.; Burnham, Robert; Thomas, Norman Gene. A list of white dwarf suspects III : Special objects of small proper motion from the Lowell survey. Bulletin of the Lowell Observatory. 1970, 7 (153): 183. Bibcode:1970LowOB...7..183G （英语）.

外部連結

ESO Online Digitized Sky Survey （页面存档备份，存于互联网档案馆）

[2MASS-1] 1.0 ^1.1 Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). CDS/ADC Collection of Electronic Catalogues. 2003, 2246: II/246 [2024-05-17]. Bibcode:2003yCat.2246....0C. （原始内容存档于2021-04-21）.

[Vennes-2] 2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 ^2.6 ^2.7 Vennes, Stephane; Nemeth, Peter; Kawka, Adela; Thorstensen, John R.; Khalack, Viktor; Ferrario, Lilia; Alper, Erek H. An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova. Science. 18 August 2017, 357 (6352): 680–683. Bibcode:2017Sci...357..680V. PMID 28818942. S2CID 24141207. arXiv:1708.05568 . doi:10.1126/science.aam8378.

[simbad-3] 3.0 ^3.1 ^3.2 GD 492. SIMBAD. 斯特拉斯堡天文資料中心.

[R1-4] Science Press Release. Astroserver.org. [17 August 2017]. （原始内容存档于2022-07-05）.

[5] Javier Barbuzano. The White Dwarf That Survived. Sky & Telescope. 17 August 2017 [2018-04-27]. （原始内容存档于2020-02-15）.

[6] Luyten, W. J. Proper Motion Survey with the 48 inch Schmidt Telescope. University of Minnesota. 1963–1981.

[7] Giclas, Henry L.; Burnham, Robert; Thomas, Norman Gene. A list of white dwarf suspects III : Special objects of small proper motion from the Lowell survey. Bulletin of the Lowell Observatory. 1970, 7 (153): 183. Bibcode:1970LowOB...7..183G （英语）.

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LP 40-365

參考資料

外部連結

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