DENIS J1048−3956: Difference between revisions

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	{{Starbox begin		{{Starbox begin
	\| name=DENIS J1048−3956		\| name=DENIS J1048−3956
	}}{{Starbox ~~observe~~		}}
			{{Starbox image
		⚫	\|image={{Location map\|100x100\|AlternativeMap=Antlia_constellation_map.svg
		⚫	\|alt=DENIS J1048−3956 is located in the constellation Antlia.
		⚫	\|caption=Location of DENIS J1048−3956 in the constellation ]\|border=infobox\|mark=Red_pog.png\|width=300
		⚫	\|label=DENIS 1048−3956
		⚫	\|position=top
		⚫	\|lat=28.1
		⚫	\|long=24.4
		⚫	}}\|caption=
			}}
		⚫	{{Starbox observe
	\| epoch=J2000		\| epoch=J2000
	\| ra = {{RA\|10\|48\|14.~~640~~}}<ref name="~~SIMBAD~~" />		\| ra = {{RA\|10\|48\|14.574}}<ref name="GaiaDR3"/>
	\| dec = {{DEC\|−39\|56\|06.24}}<ref name="~~SIMBAD~~" />		\| dec = {{DEC\|−39\|56\|06.84}}<ref name="GaiaDR3"/>
	\| appmag_v=17.532<ref name="SIMBAD" />		\| appmag_v=17.532<ref name="SIMBAD" />
	\| constell=]		\| constell=]
			}}
	}}{{Starbox character		{{Starbox character
	\| class=M8.5V<ref name="SIMBAD"/>		\| class=M8.5V<ref name="SIMBAD"/>
	\| appmag_1_passband = J		\| appmag_1_passband = J
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	{{Starbox astrometry		{{Starbox astrometry
	\| radial_v={{nowrap\|−10.1 ± 0.5}}<ref name="SIMBAD" />		\| radial_v={{nowrap\|−10.1 ± 0.5}}<ref name="SIMBAD" />
	\| prop_mo_ra={{~~nowrap~~\|~~−1198 ± 10~~}}~~<ref name="SIMBAD" />~~		\| prop_mo_ra={{val\|−1179.311\|fmt=commas}}
	\| prop_mo_dec={{~~nowrap~~\|~~−970 ± 8~~}}~~<ref name="SIMBAD" />~~		\| prop_mo_dec={{val\|−988.121}}
			\| pm_footnote=<ref name="GaiaDR3"/>
	\| parallax=247.2156		\| parallax=247.2156
	\| p_error=0.0512		\| p_error=0.0512
	\| parallax_footnote=<ref name="~~GaiaEDR3~~"~~>{{Cite Gaia EDR3\|5393446658454453632}}<~~/~~ref~~>		\| parallax_footnote=<ref name="GaiaDR3"/>
	\| absmag_v=19.37<ref name=recons/>		\| absmag_v=19.37<ref name=recons/>
	}}		}}
	{{Starbox detail		{{Starbox detail
	\| mass=0.075<ref name=Lienhart2020>{{citation\|arxiv=2007.07278\|year=2020\|title=Global analysis of the TRAPPIST Ultra-Cool Dwarf Transit Survey\|doi=10.1093/mnras/staa2054 \|last1=Lienhard \|first1=F. \|last2=Queloz \|first2=D. \|last3=Gillon \|first3=M. \|last4=Burdanov \|first4=A. \|last5=Delrez \|first5=L. \|last6=Ducrot \|first6=E. \|last7=Handley \|first7=W. \|last8=Jehin \|first8=E. \|last9=Murray \|first9=C. A. \|last10=Triaud \|first10=A H M J. \|last11=Gillen \|first11=E. \|last12=Mortier \|first12=A. \|last13=Rackham \|first13=B. V. \|journal=Monthly Notices of the Royal Astronomical Society \|volume=497 \|issue=3 \|pages=3790–3808 }}</ref>		\| mass=0.075<ref name=Lienhart2020>{{citation\|arxiv=2007.07278\|year=2020\|title=Global analysis of the TRAPPIST Ultra-Cool Dwarf Transit Survey\|doi=10.1093/mnras/staa2054 \|last1=Lienhard \|first1=F. \|last2=Queloz \|first2=D. \|last3=Gillon \|first3=M. \|last4=Burdanov \|first4=A. \|last5=Delrez \|first5=L. \|last6=Ducrot \|first6=E. \|last7=Handley \|first7=W. \|last8=Jehin \|first8=E. \|last9=Murray \|first9=C. A. \|last10=Triaud \|first10=A H M J. \|last11=Gillen \|first11=E. \|last12=Mortier \|first12=A. \|last13=Rackham \|first13=B. V. \|journal=Monthly Notices of the Royal Astronomical Society \|volume=497 \|issue=3 \|pages=3790–3808 \|doi-access=free \|bibcode=2020MNRAS.497.3790L }}</ref>
	\| radius=0.108<ref name=Lienhart2020/>		\| radius=0.108<ref name=Lienhart2020/>
	\| luminosity=		\| luminosity=
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	\| rotational_velocity=		\| rotational_velocity=
	\| age_gyr=<1<ref name=Stelzer2012></ref>		\| age_gyr=<1<ref name=Stelzer2012></ref>
	}}{{Starbox catalog		}}
			{{Starbox catalog
	\| names= ] 11547<ref name="CNS5"/>,] J10481463−3956062, ] J1048147−395606, ] 20385, ] J104814.9−395604, ] J104814.7−395606, ] 1048−3956, ] 0500-00227632 }}		\| names= ] 11547,<ref name="CNS5"/> ] J10481463−3956062, ] J1048147−395606, ] 20385, ] J104814.9−395604, ] J104814.7−395606, ] 1048−3956, ] 0500-00227632
			}}
	{{Starbox reference		{{Starbox reference
	\| Simbad=2MASS+J10481463-3956062		\| Simbad=2MASS+J10481463-3956062
	\| ARICNS =		\| ARICNS =
	}}{{starbox sources\|HIP\|CCDM\|HR}}
⚫	{{Starbox ~~image~~
⚫	\|image={{Location map\|100x100\|AlternativeMap=Antlia_constellation_map.svg
⚫	\|alt=DENIS J1048−3956 is located in the constellation Antlia.
⚫	\|caption=Location of DENIS J1048−3956 in the constellation ]\|border=infobox\|mark=Red_pog.png\|width=300
⚫	\|label=DENIS 1048−3956
⚫	\|position=top
⚫	\|lat=28.1
⚫	\|long=24.4
⚫	}}\|caption=
	}}		}}
	{{Starbox end}}		{{Starbox end}}

	'''DENIS J1048−3956''' is an exceptionally small, dim ] star ~~about~~ 13.2 ~~light years~~ from ] in the southern ] of ], among the stars closest to Earth. This star is very dim with an ] of about 17,<ref name=recons/> and ~~will require~~ a telescope with a ] to be seen. It was discovered in 2000 by Xavier Delfosse (Institute of Astrophysics of the Canary Islands, now Observatoire de Grenoble) and Thierry Forveille (Canada–France–Hawaii Telescope Corporation), with the assistance of nine other astronomers.		'''DENIS J1048−3956''' is an exceptionally small, dim ] star {{convert\|13.2\|ly\|pc\|lk=on\|abbr=off}} from ] in the southern ] of ], among the stars closest to Earth. This star is very dim with an ] of about 17,<ref name=recons/> and requires a telescope with a ] to be seen. It was discovered in 2000 by Xavier Delfosse (Institute of Astrophysics of the Canary Islands, now Observatoire de Grenoble) and Thierry Forveille (Canada–France–Hawaii Telescope Corporation), with the assistance of nine other astronomers.<ref name="Delfosse2001"/>

	Kinematically, DENIS J1048−3956 belongs to the ].<ref name=Stelzer2012/> In 2005 a powerful ] from this object was detected by ].<ref name=Burgasser2005/>		Kinematically, DENIS J1048−3956 belongs to the ].<ref name=Stelzer2012/> In 2005 a powerful ] from this object was detected by ].<ref name=Burgasser2005/>

	J1048 is a good example of the smallest, least massive stars possible. With a mass just 7.5% that of the Sun, it is barely large enough to sustain fusion in its core. In fact, it is so small, dim, and cool that it was originally thought to be a brown dwarf.		J1048 is a good example of the smallest, least massive stars possible. With a mass just 7.5% that of the Sun, it is barely large enough to sustain fusion in its core. In fact, it is so small, dim, and cool that it was originally thought to be a ].

	==See also==		==See also==
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	==References==		==References==
	{{reflist\| refs =		{{reflist\| refs =

			<ref name="GaiaDR3">{{Cite Gaia DR3\|5393446658454453632}}</ref>

	<ref name="SIMBAD">{{cite web \| url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=2MASS+J10481463-3956062 \| title=2MASSI J1048147-395606 -- Brown Dwarf (M<0.08solMass) \| publisher=] \| access-date=2009-12-15 }}</ref>		<ref name="SIMBAD">{{cite web \| url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=2MASS+J10481463-3956062 \| title=2MASSI J1048147-395606 -- Brown Dwarf (M<0.08solMass) \| publisher=] \| access-date=2009-12-15 }}</ref>

			<ref name="Delfosse2001">{{cite journal \|last1=Delfosse \|first1=X. \|last2=Forveille \|first2=T. \|display-authors=etal \|date=February 2001 \|title=New neighbours: II. An M9 dwarf at d ~ 4 pc, DENIS-P J104814.7-395606.1 \|journal=] \|volume=366 \|issue= \|pages=L13–L17 \|doi=10.1051/0004-6361:20010001 \|bibcode=2001A&A...366L..13D}}</ref>

	<ref name=recons>{{cite web \| date=January 1, 2009 \| url=http://www.chara.gsu.edu/~thenry/RECONS/TOP100.posted.htm \| title=The One Hundred Nearest Star Systems \| work=RECONS \| publisher=] \| access-date=2011-12-03 }}</ref>		<ref name=recons>{{cite web \| date=January 1, 2009 \| url=http://www.chara.gsu.edu/~thenry/RECONS/TOP100.posted.htm \| title=The One Hundred Nearest Star Systems \| work=RECONS \| publisher=] \| access-date=2011-12-03 }}</ref>
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	<ref name=gonzalez>{{Cite journal\|last1=Gonzales\|first1=Eileen C.\|last2=Faherty\|first2=Jacqueline K.\|last3=Gagné\|first3=Jonathan\|last4=Teske\|first4=Johanna\|last5=McWilliam\|first5=Andrew\|last6=Cruz\|first6=Kelle\|date=2019-12-01\|title=A Reanalysis of the Fundamental Parameters and Age of TRAPPIST-1\|journal=The Astrophysical Journal\|volume=886\|issue=2 \|pages=131\|doi=10.3847/1538-4357/ab48fc\|arxiv=1909.13859 \|bibcode=2019ApJ...886..131G \|issn=0004-637X\|doi-access=free}}</ref>		<ref name=gonzalez>{{Cite journal\|last1=Gonzales\|first1=Eileen C.\|last2=Faherty\|first2=Jacqueline K.\|last3=Gagné\|first3=Jonathan\|last4=Teske\|first4=Johanna\|last5=McWilliam\|first5=Andrew\|last6=Cruz\|first6=Kelle\|date=2019-12-01\|title=A Reanalysis of the Fundamental Parameters and Age of TRAPPIST-1\|journal=The Astrophysical Journal\|volume=886\|issue=2 \|pages=131\|doi=10.3847/1538-4357/ab48fc\|arxiv=1909.13859 \|bibcode=2019ApJ...886..131G \|issn=0004-637X\|doi-access=free}}</ref>

	<ref name="CNS5">{{cite journal \|arxiv=2211.01449 \|last1=Golovin \|first1=Alex \|last2=Reffert \|first2=Sabine \|last3=Just \|first3=Andreas \|last4=Jordan \|first4=Stefan \|last5=Vani \|first5=Akash \|last6=Jahreiß \|first6=Hartmut \|title=The Fifth Catalogue of Nearby Stars (CNS5) \|date=November 2022 \|journal=] \|volume=670 \|issue= \|pages=A19 \|doi=10.1051/0004-6361/202244250 \|bibcode=2023A&A...670A..19G}} Catalogue can be accessed .</ref>		<ref name="CNS5">{{cite journal \|arxiv=2211.01449 \|last1=Golovin \|first1=Alex \|last2=Reffert \|first2=Sabine \|last3=Just \|first3=Andreas \|last4=Jordan \|first4=Stefan \|last5=Vani \|first5=Akash \|last6=Jahreiß \|first6=Hartmut \|title=The Fifth Catalogue of Nearby Stars (CNS5) \|date=November 2022 \|journal=] \|volume=670 \|issue= \|pages=A19 \|doi=10.1051/0004-6361/202244250 \|bibcode=2023A&A...670A..19G\|s2cid=253264922 }} Catalogue can be accessed .</ref>

	}}		}}
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	{{nearest systems\|3}}		{{nearest systems\|2}}
	{{Stars of Antlia}}		{{Stars of Antlia}}

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	]		]
	]		]
			]


	{{Red-dwarf-stub}}		{{Red-dwarf-stub}}

Latest revision as of 21:32, 17 September 2024

Star in the constellation Antlia

DENIS J1048−3956
Observation data Epoch J2000 Equinox J2000
DENIS 1048−3956Location of DENIS J1048−3956 in the constellation Antlia
Constellation	Antlia
Right ascension	10 48 14.574
Declination	−39° 56′ 06.84″
Apparent magnitude (V)	17.532
Characteristics
Spectral type	M8.5V
Apparent magnitude (J)	9.5
Astrometry

Radial velocity (R_v)	−10.1 ± 0.5 km/s
Proper motion (μ)	RA: −1,179.311 mas/yr Dec.: −988.121 mas/yr
Parallax (π)	247.2156 ± 0.0512 mas
Distance	13.193 ± 0.003 ly (4.0451 ± 0.0008 pc)
Absolute magnitude (M_V)	19.37

Details

Mass	0.075 `M`_☉
Radius	0.108 `R`_☉
Surface gravity (log g)	4.3±0.3 cgs
Temperature	2330±60 K
Age	<1 Gyr

Other designations
GJ 11547, 2MASS J10481463−3956062, 2MASSI J1048147−395606, 2MUCD 20385, DENIS-P J104814.9−395604, DENIS-P J104814.7−395606, DEN 1048−3956, USNO-B1.0 0500-00227632
Database references
SIMBAD	data

DENIS J1048−3956 is an exceptionally small, dim ultra-cool red dwarf star 13.2 light-years (4.0 parsecs) from Earth in the southern constellation of Antlia, among the stars closest to Earth. This star is very dim with an apparent magnitude of about 17, and requires a telescope with a camera to be seen. It was discovered in 2000 by Xavier Delfosse (Institute of Astrophysics of the Canary Islands, now Observatoire de Grenoble) and Thierry Forveille (Canada–France–Hawaii Telescope Corporation), with the assistance of nine other astronomers.

Kinematically, DENIS J1048−3956 belongs to the young thin disc. In 2005 a powerful flare from this object was detected by radio astronomy.

J1048 is a good example of the smallest, least massive stars possible. With a mass just 7.5% that of the Sun, it is barely large enough to sustain fusion in its core. In fact, it is so small, dim, and cool that it was originally thought to be a brown dwarf.

References

^ Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
^ "2MASSI J1048147-395606 -- Brown Dwarf (M<0.08solMass)". Centre de Données astronomiques de Strasbourg. Retrieved 2009-12-15.
^ "The One Hundred Nearest Star Systems". RECONS. Georgia State University. January 1, 2009. Retrieved 2011-12-03.
^ Lienhard, F.; Queloz, D.; Gillon, M.; Burdanov, A.; Delrez, L.; Ducrot, E.; Handley, W.; Jehin, E.; Murray, C. A.; Triaud, A H M J.; Gillen, E.; Mortier, A.; Rackham, B. V. (2020), "Global analysis of the TRAPPIST Ultra-Cool Dwarf Transit Survey", Monthly Notices of the Royal Astronomical Society, 497 (3): 3790–3808, arXiv:2007.07278, Bibcode:2020MNRAS.497.3790L, doi:10.1093/mnras/staa2054
^ The ultracool dwarf DENIS-P J104814.7-395606 Chromospheres and coronae at the low-mass end of the main-sequence
Gonzales, Eileen C.; Faherty, Jacqueline K.; Gagné, Jonathan; Teske, Johanna; McWilliam, Andrew; Cruz, Kelle (2019-12-01). "A Reanalysis of the Fundamental Parameters and Age of TRAPPIST-1". The Astrophysical Journal. 886 (2): 131. arXiv:1909.13859. Bibcode:2019ApJ...886..131G. doi:10.3847/1538-4357/ab48fc. ISSN 0004-637X.
Golovin, Alex; Reffert, Sabine; Just, Andreas; Jordan, Stefan; Vani, Akash; Jahreiß, Hartmut (November 2022). "The Fifth Catalogue of Nearby Stars (CNS5)". Astronomy & Astrophysics. 670: A19. arXiv:2211.01449. Bibcode:2023A&A...670A..19G. doi:10.1051/0004-6361/202244250. S2CID 253264922. Catalogue can be accessed here.
Delfosse, X.; Forveille, T.; et al. (February 2001). "New neighbours: II. An M9 dwarf at d ~ 4 pc, DENIS-P J104814.7-395606.1". Astronomy and Astrophysics. 366: L13 – L17. Bibcode:2001A&A...366L..13D. doi:10.1051/0004-6361:20010001.
Adam J. Burgasser & Mary E. Putman (June 10, 2005). "Quiescent Radio Emission from Southern Late-Type M Dwarfs and a Spectacular Radio Flare from the M8 Dwarf DENIS 1048−3956". The Astrophysical Journal. 626 (1): 486–497. arXiv:astro-ph/0502365. Bibcode:2005ApJ...626..486B. doi:10.1086/429788. S2CID 13286883.

Deacon, N. R.; Hambly, N. C. (2001). "The trigonometric parallax of DENIS-P J104814.7-395606.1". Astronomy and Astrophysics. 380: 148–150. Bibcode:2001A&A...380..148D. doi:10.1051/0004-6361:20011290.
Jao, Wei-Chun; Henry, Todd J.; Subasavage, John P.; Brown, Misty A.; Ianna, Philip A.; Bartlett, Jennifer L.; Costa, Edgardo; Méndez, René A. (2005). "The Solar Neighborhood. XIII. Parallax Results from the CTIOPI 0.9 Meter Program: Stars with mu >= 1.0" yr-1 (MOTION Sample)". The Astronomical Journal. 129 (4): 1954–1967. arXiv:astro-ph/0502167. Bibcode:2005AJ....129.1954J. doi:10.1086/428489. S2CID 16164903.
Costa, Edgardo; Méndez, René A.; Jao, W.-C.; Henry, Todd J.; Subasavage, John P.; Brown, Misty A.; Ianna, Philip A.; Bartlett, Jennifer (2005). "The Solar Neighborhood. XIV. Parallaxes from the Cerro Tololo Inter-American Observatory Parallax Investigation-First Results from the 1.5 m Telescope Program". The Astronomical Journal. 130 (1): 337–349. Bibcode:2005AJ....130..337C. doi:10.1086/430473.

External links

← Celestial objects within 10–15 light-years →

Primary member type

Celestial objects by systems.

Subgiant stars

F-type	Procyon (Alpha Canis Minoris) (11.402±0.032 ly) white dwarf B

Main-sequence
stars

G-type	Tau Ceti (11.9118±0.0074 ly) 4 (8?) planets: (b), (c), (d), e, f, g, h, (i)
K-type	Epsilon Eridani (Ran) (10.4749±0.0037 ly) 1 (2?) planets: b (Ægir), c? 61 Cygni (11.4039±0.0012 ly) K-type main-sequence star B Epsilon Indi (11.8670±0.0041 ly) 2 T-type brown dwarfs: Ba, Bb planet Ab
M-type (red dwarfs)	Ross 248 (10.3057±0.0014 ly) Lacaille 9352 (10.7241±0.0007 ly) 2 (3?) planets: b, c, d? Ross 128 (11.0074±0.0011 ly) planet b EZ Aquarii (11.109±0.034 ly) 2 red dwarfs: B, C Struve 2398 (11.4908±0.0009 ly) red dwarf B 1 (3?) planets: Ab, Bb?, Bc? Groombridge 34 (11.6191±0.0008 ly) red dwarf B 2 planets: Ab, Ac DX Cancri (11.6797±0.0027 ly) GJ 1061 (11.9839±0.0014 ly) 3 planets: b, c, d YZ Ceti (12.1222±0.0015 ly) 3 planets: b, c, d Luyten's Star (12.3485±0.0019 ly) 2 (4?) planets: b, c, d?, e? Teegarden's Star (12.4970±0.0045 ly) 3 planets: b, c, d Kapteyn's Star (12.8308±0.0008 ly) Lacaille 8760 (12.9472±0.0018 ly) SCR 1845−6357 (13.0638±0.0070 ly) T-type brown dwarf B Kruger 60 (13.0724±0.0052 ly) red dwarf B DENIS J1048−3956 (13.1932±0.0027 ly) Ross 614 (13.363±0.040 ly) red dwarf B Wolf 1061 (14.0500±0.0016 ly) 3 planets: b, c, d Gliese 1 (14.1747±0.0022 ly) TZ Arietis (14.5780±0.0046 ly) planet b Wolf 424 (14.595±0.031 ly) red dwarf B Gliese 687 (14.8395±0.0014 ly) 2 planets: b, c Gliese 674 (14.8492±0.0018 ly) planet b LHS 292 (14.8706±0.0041 ly)

Degenerate
stars

White dwarfs	van Maanen 2 (14.0718±0.0011 ly)

Brown dwarfs

T-type	UGPS J0722-0540 (13.43±0.13 ly)

Constellation of Antlia

List of stars in Antlia

Stars

Bayer	α δ ε ζ ζ η θ ι
Variable	S T U V UX AG BF
HR	3770 3790 3812 3830 3833 3916 3932 3992 4015 4019 4086 4183 4194 4238 4313
HD	88522 93083 (Macondo)
Other	2MASS 0939−2448 DEN 1048−3956 WASP-66

Exoplanets	HD 93083 b

Galaxies

NGC	2997 3001 3087 3125 3175 3223 3244 3258 3260 3267 3268 3269 3271 3281
Other	Antlia II Antlia Dwarf IC 2531 IC 2560

Galaxy clusters	Antlia Cluster NGC 2997 Group

Latest revision as of 21:32, 17 September 2024

See also

References

External links