“HD 45364”的意思、由来-开放百科全书

HD 45364 is one of only a relative few systems that have had more than one exoplanet discovered in its orbit. The two planets, HD 45364 b and HD 45364 c respectively, were both discovered in August 2008.

Formation scenario

A detailed analysis of the formation scenario revealed that the previously reported orbital configuration might not be correct.^[1] The eccentricities are a factor of 4-5 too large to be consistent with standard planet formation theories. This is the first time that planet formation theory was able to predict new orbital parameters of a planetary system. There are other proposed scenario, in which remains the resonant configuration of the planetary system ^[15]

References

1. ^{{Cite journal | url=http://www.aanda.org/index.php?option=article&access=doi&doi=10.1051/0004-6361/200913208| title=The dynamical origin of the multi-planetary system HD 45364 | author=Rein | display-authors=etal | journal=Astronomy and Astrophysics | date=2010 | volume=510 | issue=1 | doi=10.1051/0004-6361/200913208 | format=abstract | bibcode=2010A&A...510A...4R|arxiv = 0910.5082 }} ([https://arxiv.org/abs/0910.5082 web preprint])
2. ^¹²{{cite journal | title=The HARPS search for southern extra-solar planets XVI. HD 45364, a pair of planets in a 3:2 mean motion resonance | url=http://www.aanda.org/articles/aa/full_html/2009/11/aa10774-08/aa10774-08.html | last1=Correia | first1=A. C. M. | last2=Udry | first2=S. | last3=Mayor | first3=M. | last4=Benz | first4=W. | last5=Bertaux | first5=J.-L. | last6=Bouchy | first6=F. | last7=Laskar | first7=J. | last8=Lovis | first8=C. | last9=Mordasini | first9=C. | last10=Pepe | first10=F. | last11=Queloz | first11=D. | display-authors=1| journal=Astronomy and Astrophysics | volume=496 | issue=2 | pages=521–526 | date=2009 | arxiv=0902.0597 | bibcode=2009A&A...496..521C | doi=10.1051/0004-6361:200810774 }}
3. ^¹²³⁴⁵{{cite journal | title=Validation of the new Hipparcos reduction | url=http://www.aanda.org/articles/aa/full/2007/41/aa8357-07/aa8357-07.html | last1=van Leeuwen | first1=F. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | date=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 }}Vizier catalog entry
4. ^¹{{cite journal | title=A new scenario for the origin of the 3/2 resonant system HD 45364 | url= http://www.aanda.org/articles/aa/abs/2013/12/aa21917-13/aa21917-13.html | last1=Correa-Otto | first1=J. | journal=Astronomy and Astrophysics | volume=560 | issue=65 | pages=1-10 | date=2013 | arxiv=1307.1822 | bibcode=2013A&A...560A..65C | doi=10.1051/0004-6361/201321917 }}

词条	HD 45364
释义	Planetary system Formation scenario References {{Starbox begin \| name = HD 45364 }}{{Starbox observe \| epoch = J2000.0 \| constell = Canis Major \| ra = {{RA\|06\|25\|38.48}}^[1] \| dec = {{DEC\|−31\|28\|51.4}}^[1] \| appmag_v = 8.07 }}{{Starbox character \| class = G8V \| b-v = 0.719 \| u-b = \| r-i = \| v-r = 0.01 \| variable = }}{{Starbox astrometry \| radial_v = 15.9 \| prop_mo_ra = 53.22 ± 0.48 ^[1] \| prop_mo_dec = −13.20 ± 0.77 ^[1] \| parallax = 30.59 \| p_error = 0.68 \| parallax_footnote = ^[1] \| absmag_v = +5.50 }}{{Starbox detail \| mass = 0.88 ± 0.02 \| radius = 0.82 ± 0.01 \| luminosity = 0.562 ± 0.004 \| gravity = 4.55 ± 0.03 \| temperature = 5540 ± 31 \| metal_fe = \| rotation = \| age_gyr = 3.4 ± 2.7 }}{{Starbox catalog \| names = {{odlist\|HD=30579\|SAO=196806\|CD=-31° 3286}} }}{{Starbox reference \| Simbad = HD+45364 \| NSTED = HD+45364 \| EPE = HD+45364 }}{{Starbox end}}HD 45364 is a star approximately 107 light years away from Earth in the constellation of Canis Major. As of August 2008 there are two confirmed extrasolar planets (or exoplanets) orbiting around it.^[12] Planetary system HD 45364 is one of only a relative few systems that have had more than one exoplanet discovered in its orbit. The two planets, HD 45364 b and HD 45364 c respectively, were both discovered in August 2008. {{OrbitboxPlanet begin \| table_ref = ^[12] }}{{OrbitboxPlanet \| exoplanet = b \| mass = ≥0.1872 \| period = 226.93 ± 0.37 \| semimajor = 0.6813 \| eccentricity = 0.1684 ± 0.190 }}{{OrbitboxPlanet \| exoplanet = c \| mass = ≥0.6579 \| period = 342.85 ± 0.28 \| semimajor = 0.8972 \| eccentricity = 0.0974 ± 0.012 }}{{Orbitbox end}} Formation scenario A detailed analysis of the formation scenario revealed that the previously reported orbital configuration might not be correct.^[1] The eccentricities are a factor of 4-5 too large to be consistent with standard planet formation theories. This is the first time that planet formation theory was able to predict new orbital parameters of a planetary system. There are other proposed scenario, in which remains the resonant configuration of the planetary system ^[15] References 1. ^{{Cite journal \| url=http://www.aanda.org/index.php?option=article&access=doi&doi=10.1051/0004-6361/200913208\| title=The dynamical origin of the multi-planetary system HD 45364 \| author=Rein \| display-authors=etal \| journal=Astronomy and Astrophysics \| date=2010 \| volume=510 \| issue=1 \| doi=10.1051/0004-6361/200913208 \| format=abstract \| bibcode=2010A&A...510A...4R\|arxiv = 0910.5082 }} ([https://arxiv.org/abs/0910.5082 web preprint]) 2. ^¹²{{cite journal \| title=The HARPS search for southern extra-solar planets XVI. HD 45364, a pair of planets in a 3:2 mean motion resonance \| url=http://www.aanda.org/articles/aa/full_html/2009/11/aa10774-08/aa10774-08.html \| last1=Correia \| first1=A. C. M. \| last2=Udry \| first2=S. \| last3=Mayor \| first3=M. \| last4=Benz \| first4=W. \| last5=Bertaux \| first5=J.-L. \| last6=Bouchy \| first6=F. \| last7=Laskar \| first7=J. \| last8=Lovis \| first8=C. \| last9=Mordasini \| first9=C. \| last10=Pepe \| first10=F. \| last11=Queloz \| first11=D. \| display-authors=1\| journal=Astronomy and Astrophysics \| volume=496 \| issue=2 \| pages=521–526 \| date=2009 \| arxiv=0902.0597 \| bibcode=2009A&A...496..521C \| doi=10.1051/0004-6361:200810774 }} 3. ^¹²³⁴⁵{{cite journal \| title=Validation of the new Hipparcos reduction \| url=http://www.aanda.org/articles/aa/full/2007/41/aa8357-07/aa8357-07.html \| last1=van Leeuwen \| first1=F. \| journal=Astronomy and Astrophysics \| volume=474 \| issue=2 \| pages=653–664 \| date=2007 \| arxiv=0708.1752 \| bibcode=2007A&A...474..653V \| doi=10.1051/0004-6361:20078357 }}Vizier catalog entry 4. ^¹{{cite journal \| title=A new scenario for the origin of the 3/2 resonant system HD 45364 \| url= http://www.aanda.org/articles/aa/abs/2013/12/aa21917-13/aa21917-13.html \| last1=Correa-Otto \| first1=J. \| journal=Astronomy and Astrophysics \| volume=560 \| issue=65 \| pages=1-10 \| date=2013 \| arxiv=1307.1822 \| bibcode=2013A&A...560A..65C \| doi=10.1051/0004-6361/201321917 }} ^[2]^[3]^[4] }}{{Sky\|06\|25\|38\|-\|31\|28\|51\|106.3}}{{Stars of Canis Major}}{{main-star-stub}} 6 : Canis Major\|G-type main-sequence stars\|Durchmusterung objects\|Henry Draper Catalogue objects\|Hipparcos objects\|Planetary systems with two confirmed planets
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Planetary system

Formation scenario

References