For faster navigation, this Iframe is preloading the Wikiwand page for BPM 37093.

BPM 37093

此條目可能包含原创研究。 (2020年1月7日)请协助補充参考资料、添加相关内联标签和删除原创研究内容以改善这篇条目。详细情况请参见讨论页
BPM 37093
觀測資料
曆元 J2000.0 (ICRS)
星座 半人馬座
星官
赤經 12h 38m 49.93s[1]
赤緯 -49° 48′ 01.2″[1]
視星等(V) 14.0[1]
特性
光谱分类DAV4.4[2]
变星类型DAV (ZZ Ceti)[2]
天体测定
徑向速度 (Rv)−12[2] km/s
视差 (π)61.0 ± 9.4[3] mas
距离approx. 53 ly
(approx. 16 pc)
詳細資料
質量1.10[4] M
表面重力 (log g)8.81 ± 0.05[5]
亮度0.001[3] L
溫度11730 ± 350[5][6] K
其他命名
V886 Cen, V886 Centauri, GJ 2095, LFT 931, LHS 2594, LTT 4816, WD 1236-495[1]

BPM 37093,是一顆位於半人馬座白矮星,距離地球50光年。被推測存在大量晶體的碳星球,及後獲得足夠的證據證實。據推算,它的核心存在著1×1034克拉鑽石,其直徑達4,000公里。

2005年的情人節前夕,美國哈佛-史密森天體物理中心的麥特考夫、英國劍橋大學的蒙哥馬利、巴西聖卡塔琳娜聯邦大學的卡南宣布發現「BPM 37093」。當時麥特考夫開玩笑說:「就算是比爾·蓋茲加上唐纳德·川普的財力,也買不起。」

四十年來,天文學家一直認為白矮星隨著溫度降低,其核心會結晶化,但確實證據始終難以觀測。麥特考夫則是從白矮星的「BPM 37093」脈動振盪著手,推算出它的核心確已結晶。五十億年之後,我們的太陽也會蛻變成一顆白矮星,再假以一段時日,今日的太陽系中心將只見一顆超級大鑽石。

參考資料

[编辑]
  1. ^ 1.0 1.1 1.2 1.3 BPM 37093, query result in SIMBAD. Accessed on line April 1, 2008.
  2. ^ 2.0 2.1 2.2 McCook, George P.; Sion, Edward M. A Catalog of Spectroscopically Identified White Dwarfs. The Astrophysical Journal Supplement Series. 1999-03-01, 121 [2022-10-08]. ISSN 0067-0049. doi:10.1086/313186. (原始内容存档于2022-12-14). 
  3. ^ 3.0 3.1 Bergeron, P.; Leggett, S. K.; Ruiz, María Teresa. Photometric and Spectroscopic Analysis of Cool White Dwarfs with Trigonometric Parallax Measurements. The Astrophysical Journal Supplement Series. 2001-04-01, 133 [2022-10-08]. Bibcode:2001ApJS..133..413B. ISSN 0067-0049. doi:10.1086/320356. (原始内容存档于2022-10-10). 
  4. ^ Kanaan, A.; Nitta, A.; Winget, D. E.; Kepler, S. O.; Montgomery, M. H.; Metcalfe, T. S.; Oliveira, H.; Fraga, L.; da Costa, A. F. M.; Costa, J. E. S.; Castanheira, B. G. Whole Earth Telescope observations of BPM 37093: A seismological test of crystallization theory in white dwarfs. Astronomy & Astrophysics. 2005-03, 432 (1). Bibcode:2005A&A...432..219K. ISSN 0004-6361. doi:10.1051/0004-6361:20041125. 
  5. ^ 5.0 5.1 P. Brassard, G. Fontaine, Asteroseismology of the Crystallized ZZ Ceti Star BPM 37093: A Different View, Astrophysical Journal 622, #1, pp. 572–576. Bibcode2005ApJ...622..572B
  6. ^ Brassard, P.; Fontaine, G. Asteroseismology of the Crystallized ZZ Ceti Star BPM 37093: A Different View. The Astrophysical Journal. 2005-03-01, 622 [2022-10-08]. Bibcode:2005ApJ...622..572B. ISSN 0004-637X. doi:10.1086/428116. (原始内容存档于2022-10-12). 

外部連結

[编辑]
{{bottomLinkPreText}} {{bottomLinkText}}
BPM 37093
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?