“Zeta1 Lyrae”的意思、由来-开放百科全书

ζ¹ Lyrae was discovered to be a spectroscopic binary by William Wallace Campbell and Heber Doust Curtis in 1905 from photographic plates taken at the Lick Observatory between 1902 and 1904.^[23] The first orbit was calculated by Frank Craig Jordan of Allegheny Observatory in 1910 with results in good agreement with the most recent orbit.^[24]

Binary system

This is a single-lined spectroscopic binary system with an orbital period of 4.3 days and a nearly circular orbit with an eccentricity of 0.01.^[11] The primary, component A, is an Am star with a stellar classification of kA5hF0mF2. This complex notation indicates that the spectral type determined solely from the calcium K line would be A5, the spectral type determined from other metallic lines would be F2, and the type determined from hydrogen lines would be F0.^[4]

Variability

ζ¹ Lyrae appears to be slightly variable, with a frequency of 0.65256 cycles per day and an amplitude of 0.0032 in magnitude.^[27] The star has an estimated 2.36^[12] times the mass of the Sun and around 2.5^[13] times the Sun's radius. The position of this system is associated with an X-ray source with a luminosity of {{Val|571.6e20|u=W}}.^[30]

References

1. ^¹{{citation | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 | postscript=. }}
2. ^¹²{{citation | last1=Pasinetti Fracassini | first1=L. E. | last2=Pastori | first2=L. | last3=Covino | first3=S. | last4=Pozzi | first4=A. | title=Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) | edition=3rd | journal=Astronomy and Astrophysics | volume=367 | issue=2 | pages=521–524 |date=February 2001 | doi=10.1051/0004-6361:20000451 | bibcode=2001A&A...367..521P | arxiv=astro-ph/0012289 | postscript=. }}
3. ^¹{{citation | last1=Koen | first1=Chris | last2=Eyer | first2=Laurent | title=New periodic variables from the Hipparcos epoch photometry | journal=Monthly Notices of the Royal Astronomical Society | volume=331 | pages=45 | year=2002 | doi=10.1046/j.1365-8711.2002.05150.x | bibcode=2002MNRAS.331...45K | arxiv=astro-ph/0112194 | postscript=. }}
4. ^¹²³{{citation | display-authors=1 | last1=Prugniel | first1=Ph. | last2=Vauglin | first2=I. | last3=Koleva | first3=M. | title=The atmospheric parameters and spectral interpolator for the MILES stars | journal=Astronomy & Astrophysics | postscript=. | volume=531 | pages=A165 | year=2011 | doi=10.1051/0004-6361/201116769 | arxiv=1104.4952 |bibcode = 2011A&A...531A.165P }}
5. ^¹{{citation | title=Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i | display-authors=1 | last1=Royer | first1=F. | last2=Grenier | first2=S. | last3=Baylac | first3=M.-O. | last4=Gómez | first4=A. E. | last5=Zorec | first5=J. | journal=Astronomy and Astrophysics | volume=393 | issue=3 | pages=897–911 | date=October 2002 | doi=10.1051/0004-6361:20020943 | bibcode=2002A&A...393..897R | arxiv=astro-ph/0205255 | postscript=. }}
6. ^¹{{citation | title=X-ray emission from A-type stars | last1=Schröder | first1=C. | last2=Schmitt | first2=J. H. M. M. | journal=Astronomy and Astrophysics | postscript=. | volume=475 | issue=2 | pages=677–684 | date=November 2007 | doi=10.1051/0004-6361:20077429 | bibcode=2007A&A...475..677S }}
7. ^¹{{cite journal | display-authors=1 | last1=McDonald | first1=I. | last2=Zijlstra | first2=A. A. | last3=Boyer | first3=M. L. | title=Fundamental Parameters and Infrared Excesses of Hipparcos Stars | journal=Monthly Notices of the Royal Astronomical Society | volume=427 | issue=1 | pages=343–57 | year=2012 | bibcode=2012MNRAS.427..343M | arxiv=1208.2037 | doi=10.1111/j.1365-2966.2012.21873.x }}
8. ^¹²{{citation | title=S_B⁹: The ninth catalogue of spectroscopic binary orbits | journal=Astronomy & Astrophysics |display-authors=5 | last1=Pourbaix | first1=D. | last2=Tokovinin | first2=A. A. | last3=Batten | first3=A. H. | last4=Fekel | first4=F. C. | last5=Hartkopf | first5=W. I. | last6=Levato | first6=H. | last7=Morrell | first7=N. I. | last8=Torres | first8=G. | last9=Udry | first9=S. | volume=424 | issue=2 | pages=727 | date=2004 | doi=10.1051/0004-6361:20041213 | bibcode=2004A&A...424..727P | arxiv=astro-ph/0406573 | postscript=. }}
9. ^¹²³{{citation | last1=De Rosa | first1=R. J. | last2=Patience | first2=J. | last3=Wilson | first3=P. A. | last4=Schneider | first4=A. | last5=Wiktorowicz | first5=S. J. | last6=Vigan | first6=A. | last7=Marois | first7=C. | last8=Song | first8=I. | last9=MacIntosh | first9=B. | last10=Graham | first10=J. R. | last11=Doyon | first11=R. | last12=Bessell | first12=M. S. | last13=Thomas | first13=S. | last14=Lai | first14=O. | title=The VAST Survey - III. The multiplicity of A-type stars within 75 pc | journal=Monthly Notices of the Royal Astronomical Society | volume=437 | issue=2 | pages=1216 | year=2013 | bibcode=2014MNRAS.437.1216D | doi=10.1093/mnras/stt1932 | arxiv=1311.7141 | display-authors=1 | postscript=. }}
10. ^¹²³⁴{{citation | last1=Mermilliod | first1=J.-C. | title=Compilation of Eggen's UBV data, transformed to UBV (unpublished) | journal=Catalogue of Eggen's UBV data | year=1986 | publisher=SIMBAD | bibcode=1986EgUBV........0M | postscript=. }}
11. ^¹{{cite simbad | title=* zet01 Lyr | access-date=2017-03-17 | postscript=. }}
12. ^¹²{{cite journal|bibcode=1995ApJS...99..135A|title=The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars|journal=Astrophysical Journal Supplement |volume=99|pages=135|author1=Abt|first1=Helmut A.|last2=Morrell|first2=Nidia I.|year=1995|doi=10.1086/192182}}
13. ^¹{{cite journal | title=A list of nine stars whose radial velocities vary | url=http://articles.adsabs.harvard.edu/full/1905ApJ....21..185C | last1=Campbell | first1=W. W. | last2=Curtis | first2=H. D. | journal=The Astrophysical Journal | volume=21 | pages=189 | year=1905 | bibcode=1905ApJ....21..185C | doi=10.1086/141200 }}
14. ^¹{{cite journal | title=The orbit of ζ¹ Lyrae | url=http://articles.adsabs.harvard.edu/full/1910PAllO...1..115J | last1=Jordan | first1=Frank Craig | journal=Publications of the Allegheny Observatory of the University of Pittsburgh | volume=1 | number=17 | pages=115–118 | year=1910 | bibcode=1910PAllO...1..115J }}

词条	Zeta1 Lyrae
释义	Observational history Binary system Variability References {{DISPLAYTITLE:Zeta¹ Lyrae}}{{other stars by Bayer designation\|Zeta Lyrae{{!}}ζ Lyrae}}{{Starbox begin \| name = Zeta¹ Lyrae }}{{Starbox observe \| epoch = J2000.0 \| equinox = J2000.0 (ICRS) \| constell = Lyra \| ra = {{RA\|18\|44\|46.35735}} \| dec = {{DEC\|+37\|36\|18.4171}} \| appmag_v = 4.37^[3] }}{{Starbox character \| class = kA5hF0mF2^[4] \| b-v = +0.18^[3] \| u-b = +0.17^[3] \| r-i = \| variable = }}{{Starbox astrometry \| radial_v = \| prop_mo_ra = +29.04 \| prop_mo_dec = +27.03 \| parallax = 20.89 \| p_error = 0.17 \| parallax_footnote = \| absmag_v = +0.94^[10] }}{{Starbox orbit \| reference = ^[11] \| period_unitless = 4.3 d \| axis = \| axis_unitless = \| eccentricity = 0.01 \| inclination = \| node = \| periastron = 2440000.723 JD \| periarg = 0.00 \| k1 = 51.6 }}{{Starbox detail \| source = \| mass = 2.36^[12] \| radius = 2.5^[13] \| luminosity = 31^[14] \| temperature = {{Val\|7914\|112}}^[15] \| gravity = {{Val\|3.7\|0.1}}^[15] \| metal_fe = {{Val\|0.38\|0.06}}^[15] \| rotational_velocity = 47^[18] \| age_myr = 500^[12] }}{{Starbox catalog \| names = ζ¹ Lyr, 6 Lyr, BD+37° 3222, HD 173648, HIP 91971, HR 7056, SAO 67321.^[20] }}{{Starbox reference \| Simbad = zet01+Lyr }}{{Starbox end}}Zeta¹ Lyrae, Latinized from ζ¹ Lyrae, is a binary star in the northern constellation of Lyra. Based upon an annual parallax shift of 20.89 mas as seen from Earth, the pair are located about 156 light years from the Sun. It is visible to the naked eye with an apparent visual magnitude of 4.37.^[3] Observational history ζ¹ Lyrae was discovered to be a spectroscopic binary by William Wallace Campbell and Heber Doust Curtis in 1905 from photographic plates taken at the Lick Observatory between 1902 and 1904.^[23] The first orbit was calculated by Frank Craig Jordan of Allegheny Observatory in 1910 with results in good agreement with the most recent orbit.^[24] Binary system This is a single-lined spectroscopic binary system with an orbital period of 4.3 days and a nearly circular orbit with an eccentricity of 0.01.^[11] The primary, component A, is an Am star with a stellar classification of kA5hF0mF2. This complex notation indicates that the spectral type determined solely from the calcium K line would be A5, the spectral type determined from other metallic lines would be F2, and the type determined from hydrogen lines would be F0.^[4] Variability ζ¹ Lyrae appears to be slightly variable, with a frequency of 0.65256 cycles per day and an amplitude of 0.0032 in magnitude.^[27] The star has an estimated 2.36^[12] times the mass of the Sun and around 2.5^[13] times the Sun's radius. The position of this system is associated with an X-ray source with a luminosity of {{Val\|571.6e20\|u=W}}.^[30] References 1. ^¹{{citation \| title=XHIP: An extended hipparcos compilation \| last1=Anderson \| first1=E. \| last2=Francis \| first2=Ch. \| journal=Astronomy Letters \| volume=38 \| issue=5 \| pages=331 \| year=2012 \| bibcode=2012AstL...38..331A \| doi=10.1134/S1063773712050015 \| arxiv=1108.4971 \| postscript=. }} 2. ^¹²{{citation \| last1=Pasinetti Fracassini \| first1=L. E. \| last2=Pastori \| first2=L. \| last3=Covino \| first3=S. \| last4=Pozzi \| first4=A. \| title=Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) \| edition=3rd \| journal=Astronomy and Astrophysics \| volume=367 \| issue=2 \| pages=521–524 \|date=February 2001 \| doi=10.1051/0004-6361:20000451 \| bibcode=2001A&A...367..521P \| arxiv=astro-ph/0012289 \| postscript=. }} 3. ^¹{{citation \| last1=Koen \| first1=Chris \| last2=Eyer \| first2=Laurent \| title=New periodic variables from the Hipparcos epoch photometry \| journal=Monthly Notices of the Royal Astronomical Society \| volume=331 \| pages=45 \| year=2002 \| doi=10.1046/j.1365-8711.2002.05150.x \| bibcode=2002MNRAS.331...45K \| arxiv=astro-ph/0112194 \| postscript=. }} 4. ^¹²³{{citation \| display-authors=1 \| last1=Prugniel \| first1=Ph. \| last2=Vauglin \| first2=I. \| last3=Koleva \| first3=M. \| title=The atmospheric parameters and spectral interpolator for the MILES stars \| journal=Astronomy & Astrophysics \| postscript=. \| volume=531 \| pages=A165 \| year=2011 \| doi=10.1051/0004-6361/201116769 \| arxiv=1104.4952 \|bibcode = 2011A&A...531A.165P }} 5. ^¹{{citation \| title=Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i \| display-authors=1 \| last1=Royer \| first1=F. \| last2=Grenier \| first2=S. \| last3=Baylac \| first3=M.-O. \| last4=Gómez \| first4=A. E. \| last5=Zorec \| first5=J. \| journal=Astronomy and Astrophysics \| volume=393 \| issue=3 \| pages=897–911 \| date=October 2002 \| doi=10.1051/0004-6361:20020943 \| bibcode=2002A&A...393..897R \| arxiv=astro-ph/0205255 \| postscript=. }} 6. ^¹{{citation \| title=X-ray emission from A-type stars \| last1=Schröder \| first1=C. \| last2=Schmitt \| first2=J. H. M. M. \| journal=Astronomy and Astrophysics \| postscript=. \| volume=475 \| issue=2 \| pages=677–684 \| date=November 2007 \| doi=10.1051/0004-6361:20077429 \| bibcode=2007A&A...475..677S }} 7. ^¹{{cite journal \| display-authors=1 \| last1=McDonald \| first1=I. \| last2=Zijlstra \| first2=A. A. \| last3=Boyer \| first3=M. L. \| title=Fundamental Parameters and Infrared Excesses of Hipparcos Stars \| journal=Monthly Notices of the Royal Astronomical Society \| volume=427 \| issue=1 \| pages=343–57 \| year=2012 \| bibcode=2012MNRAS.427..343M \| arxiv=1208.2037 \| doi=10.1111/j.1365-2966.2012.21873.x }} 8. ^¹²{{citation \| title=S_B⁹: The ninth catalogue of spectroscopic binary orbits \| journal=Astronomy & Astrophysics \|display-authors=5 \| last1=Pourbaix \| first1=D. \| last2=Tokovinin \| first2=A. A. \| last3=Batten \| first3=A. H. \| last4=Fekel \| first4=F. C. \| last5=Hartkopf \| first5=W. I. \| last6=Levato \| first6=H. \| last7=Morrell \| first7=N. I. \| last8=Torres \| first8=G. \| last9=Udry \| first9=S. \| volume=424 \| issue=2 \| pages=727 \| date=2004 \| doi=10.1051/0004-6361:20041213 \| bibcode=2004A&A...424..727P \| arxiv=astro-ph/0406573 \| postscript=. }} 9. ^¹²³{{citation \| last1=De Rosa \| first1=R. J. \| last2=Patience \| first2=J. \| last3=Wilson \| first3=P. A. \| last4=Schneider \| first4=A. \| last5=Wiktorowicz \| first5=S. J. \| last6=Vigan \| first6=A. \| last7=Marois \| first7=C. \| last8=Song \| first8=I. \| last9=MacIntosh \| first9=B. \| last10=Graham \| first10=J. R. \| last11=Doyon \| first11=R. \| last12=Bessell \| first12=M. S. \| last13=Thomas \| first13=S. \| last14=Lai \| first14=O. \| title=The VAST Survey - III. The multiplicity of A-type stars within 75 pc \| journal=Monthly Notices of the Royal Astronomical Society \| volume=437 \| issue=2 \| pages=1216 \| year=2013 \| bibcode=2014MNRAS.437.1216D \| doi=10.1093/mnras/stt1932 \| arxiv=1311.7141 \| display-authors=1 \| postscript=. }} 10. ^¹²³⁴{{citation \| last1=Mermilliod \| first1=J.-C. \| title=Compilation of Eggen's UBV data, transformed to UBV (unpublished) \| journal=Catalogue of Eggen's UBV data \| year=1986 \| publisher=SIMBAD \| bibcode=1986EgUBV........0M \| postscript=. }} 11. ^¹{{cite simbad \| title=* zet01 Lyr \| access-date=2017-03-17 \| postscript=. }} 12. ^¹²{{cite journal\|bibcode=1995ApJS...99..135A\|title=The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars\|journal=Astrophysical Journal Supplement \|volume=99\|pages=135\|author1=Abt\|first1=Helmut A.\|last2=Morrell\|first2=Nidia I.\|year=1995\|doi=10.1086/192182}} 13. ^¹{{cite journal \| title=A list of nine stars whose radial velocities vary \| url=http://articles.adsabs.harvard.edu/full/1905ApJ....21..185C \| last1=Campbell \| first1=W. W. \| last2=Curtis \| first2=H. D. \| journal=The Astrophysical Journal \| volume=21 \| pages=189 \| year=1905 \| bibcode=1905ApJ....21..185C \| doi=10.1086/141200 }} 14. ^¹{{cite journal \| title=The orbit of ζ¹ Lyrae \| url=http://articles.adsabs.harvard.edu/full/1910PAllO...1..115J \| last1=Jordan \| first1=Frank Craig \| journal=Publications of the Allegheny Observatory of the University of Pittsburgh \| volume=1 \| number=17 \| pages=115–118 \| year=1910 \| bibcode=1910PAllO...1..115J }} ^[1]^[2]^[3]^[4]^[5]^[6]^[7]^[8]^[9]^[10]^[11]^[12]^[13]^[14] }}{{Stars of Lyra\|state=collapsed}} 9 : Am stars\|Lyra (constellation)\|Bayer objects\|Flamsteed objects\|Henry Draper Catalogue objects\|Hipparcos objects\|HR objects\|Spectroscopic binaries\|Durchmusterung objects
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Observational history

Binary system

Variability

References