# 都卜勒光譜學

## 步驟

### 範例

${\displaystyle r^{3}={\frac {GM_{star}}{4\pi ^{2}}}P_{star}^{2}\,}$

• r 是行星和恆星的距離
• G 是萬有引力常數
• Mstar 是恆星質量
• Pstar 是觀測到的恆星光譜變化週期

${\displaystyle V_{PL}={\sqrt {GM_{star}/r}}\,}$

${\displaystyle M_{PL}={\frac {M_{star}V_{star}}{V_{PL}}}\,}$

## 徑向速度比較列表

(AU)

(m/s)

(太陽質量)

(地球質量)

(L0)

(AU)

(cm/s)

(日)
0.10 1.0 8×10-4 M8 0.028 168 6
0.21 1.0 7.9×10-3 M5 0.089 65 21
0.47 1.0 6.3×10-2 M0 0.25 26 67
0.65 1.0 1.6×10-1 K5 0.40 18 115
0.78 2.0 4.0×10-1 K0 0.63 25 209

## 參考資料

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3. Radial velocity method. The Internet Encyclopedia of Science. [2007-04-27]. （原始内容存档于2007-10-29）.
4. ^ A. Wolszczan. Doppler spectroscopy and astrometry – Theory and practice of planetary orbit measurements (PDF). ASTRO 497: "Astronomy of Extrasolar Planets" lectures notes. Penn State University. Spring 2006 [2009-04-19]. （原始内容 (PDF)存档于2008-12-17）. 外部链接存在于|work= (帮助)
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8. ^ P.C. Gregory. A Bayesian periodogram finds evidence for three planets in HD 11964. Monthly Notices of the Royal Astronomical Society. 2007, 381 (4): 1607–1616. Bibcode:2007MNRAS.381.1607G. doi:10.1111/j.1365-2966.2007.12361.x.
9. ^ J.T. Wright; et al. Ten New and Updated Multi-planet Systems, and a Survey of Exoplanetary Systems. The Astrophysical Journal. 2008, 693 (2): 1084–1099. Bibcode:2009ApJ...693.1084W. . doi:10.1088/0004-637X/693/2/1084.
10. ^ ESPRESSO and CODEX the next generation of RV planet hunters at ESO. Chinese Academy of Sciences. 2010-10-16 [2010-10-16]. （原始内容存档于2011-07-04）.
11. ^ An NIR laser frequency comb for high precision Doppler planet surveys. Chinese Academy of Sciences. 2010-10-16 [2010-10-16].[失效連結]