| 词条 | HD 125612 c |
| 释义 |
| name = HD 125612 c | discoverer = Lo Curto et al. | discovery_site = La Silla Observatory | discovered = October 19, 2009 | discovery_method = Radial velocity (HARPS) | apsis = astron | semimajor = {{val|0.0524|0.0031}} AU | eccentricity = {{val|0.049|0.038}}[1] | period = {{val|4.15514|0.00026}}[1] d | time_periastron = {{val|2463057.6|1.7}}[1] | arg_peri = {{val|123|147}}[1] | semi-amplitude = {{val|6.46|0.44}}[1] | star = HD 125612 }}HD 125612 c is an extrasolar planet which orbits the G-type main sequence star HD 125612, located approximately 188 light years away in the constellation Virgo.[6] The discovery of this planet was announced by the HARPS team on October 19, 2009, together with 31 other planets, including HD 125612 d. In April 2010, the Spitzer Space Telescope was used to search for the transit of this planet across the face of its host star. The initial light curve was consistent with a transit, however new observations with Spitzer in September 2010 did not confirm the transit signal. Analysis of both Spitzer light curves showed that the possibility of a transit was only 0.24% compared to 9.7% prior to these observations.[8] References1. ^1 {{cite journal | title=The Spitzer search for the transits of HARPS low-mass planets. II. Null results for 19 planets | url=https://www.aanda.org/articles/aa/full_html/2017/05/aa29270-16/aa29270-16.html | last1=Gillon | first1=M. | last2=Demory | first2=B.-O. | last3=Lovis | first3=C. | last4=Deming | first4=D. | last5=Ehrenreich | first5=D. | last6=Lo Curto | first6=G. | last7=Mayor | first7=M. | last8=Pepe | first8=F. | last9=Queloz | first9=D. | last10=Seager | first10=S. | last11=Ségransan | first11=D. | last12=Udry | first12=S. | display-authors=1 | journal=Astronomy and Astrophysics | volume=601 | at=A117 | year=2017 | arxiv=1701.01303 | bibcode=2017A&A...601A.117G | doi=10.1051/0004-6361/201629270 }} [1][2][3]2. ^1 {{cite journal | title=The HARPS search for southern extra-solar planets. XXII. Multiple planet systems from the HARPS volume limited sample | url=http://www.aanda.org/articles/aa/full_html/2010/04/aa13523-09/aa13523-09.html | last1=Lo Curto | first1=G. | last2=Mayor | first2=M. | last3=Benz | first3=W. | last4=Bouchy | first4=F. | last5=Lovis | first5=C. | last6=Moutou | first6=C. | last7=Naef | first7=D. | last8=Pepe | first8=F. | last9=Queloz | first9=D. | display-authors=1 | journal=Astronomy and Astrophysics | volume=512 | at=A48 | year=2010 | bibcode=2010A&A...512A..48L | doi=10.1051/0004-6361/200913523 | arxiv=1411.7048 }} 3. ^1 2 3 4 5 {{cite journal | title=Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810 | last1=Ment | first1=Kristo | last2=Fischer | first2=Debra A. | last3=Bakos | first3=Gaspar | last4=Howard | first4=Andrew W. | last5=Isaacson | first5=Howard | display-authors=1 | journal=The Astronomical Journal | volume=156 | issue=5 | at=213 | year=2018 | arxiv=1809.01228 | bibcode=2018AJ....156..213M | doi=10.3847/1538-3881/aae1f5 }} }}{{Sky|14|20|53.5147|-|17|28|53.475|172.28}}{{HD 125612}}{{extrasolar-planet-stub}} 6 : Exoplanets|Exoplanets discovered in 2009|Exoplanets detected by radial velocity|Giant planets|Virgo (constellation)|Hot Neptunes |
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