WISE 1800+0134

{{Starbox begin

|name=WISEP J180026.60+013453.1}}

{{Starbox observe

|epoch=2010.22{{r|Gizis2011}}

|equinox=J2000{{r|Gizis2011}}

|constell=Ophiuchus

|ra={{RA|18|00|26.60}}{{r|Gizis2011}}

|dec={{DEC|01|34|53.1}}{{r|Gizis2011}}}}

{{Starbox character

|class=L7.5{{r|Gizis2011}}

|appmag_1_passband=J (2MASS filter system)

|appmag_1=14.30 ± 0.04{{r|Gizis2011}}

|appmag_2_passband=H (2MASS filter system)

|appmag_2=13.12 ± 0.04{{r|Gizis2011}}

|appmag_3_passband=K_S (2MASS filter system)

|appmag_3=12.42 ± 0.03{{r|Gizis2011}}

}}

{{Starbox astrometry

|prop_mo_ra=183.734

|prop_mo_dec=-384.108

|parallax=128.0546

|p_error=0.5101

|parallax_footnote={{cite Gaia EDR3|4468009917744160000}}

}}

{{Starbox detail

|source=

|temperature=1430 ± 100{{r|Gizis2011}}

|luminosity=10^{−4.53 ± 0.04}

|mass=0.045{{±|0.015}}

| rotation = 9.3 hours

| rotational_velocity = 13.5{{±|0.5}}

|age_gyr=0.9{{±|0.6}}

}}

{{Starbox catalog

|names=WISEP J180026.60+013453.1{{r|Gizis2011}}
W1800+0134{{r|Gizis2011}}
2MASS J18002648+0134565{{r|Gizis2011}}
{{abbr|DENIS|Deep Near Infrared Survey of the Southern Sky}} J180026.4+013457{{r|Gizis2011}}
{{abbr|DENIS|Deep Near Infrared Survey of the Southern Sky}}-P J180026.4+013457{{r|Simbad}}

}}

{{Starbox reference

| Simbad=WISEP+J180026.60%2B013453.1

}}

{{Starbox image

|image={{Location map|100x100|AlternativeMap=Celestial_map_Oph.svg

|lat=69.381516551793

|long=29.615279433601

}}|caption=

}}

WISEP J180026.60+013453.1 (designation is abbreviated to W1800+0134{{r|Gizis2011}}) is a brown dwarf of spectral class L7.5,{{r|Gizis2011}} located in constellation Ophiuchus at approximately 26 light-years from Earth.{{r|Gizis2011}}

Discovery

WISEP J180026.60+013453.1 was discovered in 2011 by Gizis et al. from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength {{convert|40|cm|in}}) space telescope, which mission lasted from December 2009 to February 2011. There are also precovery identifications of this object in Two Micron All-Sky Survey (2MASS) data (observed on 2000 September 23) and in the 3rd release of the {{abbr|DENIS|Deep Near Infrared Survey of the Southern Sky}} database (close in time to the 2MASS observation).{{r|Gizis2011}} On 2011 June 22 Gizis et al. had conducted near-infrared spectroscopy with SpeX spectrograph, mounted on the 3 m Infrared Telescope Facility (IRTF), located at the Mauna Kea Observatory in Hawaii.{{r|Gizis2011}} In 2011 Gizis et al. published a paper in The Astronomical Journal, where they presented discovery of a newfound by WISE L-type brown dwarf WISEP J180026.60+013453.1 (a single discovery, presented in the article).{{r|Gizis2011}}

Physical properties

WISEP J180026.60+013453.1 has temperature 1430 ± 100 K and luminosity 10^{−4.5 ± 0.3} Solar luminosities (the estimates are based on the object's spectral class (L7.5)).{{r|Gizis2011}} Mass estimates, determined from this temperature, are 0.04,For an assumed age 0.5 Gyr. 0.05,For an assumed age 1 Gyr. and 0.074For an assumed age 5 Gyr. Solar masses, anyway below the hydrogen-burning limit, which implies that WISEP J180026.60+013453.1 is not a true star, but only a substellar object, that is a brown dwarf.{{r|Gizis2011}}

Failed test for binarity

WISEP J180026.60+013453.1 was tested spectroscopically for L + T binarity, and the binarity was not revealed.{{r|Gizis2011}} Common proper motion companions also were not found.{{r|Gizis2011}}

Notes

References

{{reflist|refs=

{{cite journal |last=Gizis |first=John E. |author2=Burgasser, Adam J. |author3=Faherty, Jacqueline K. |author4=Castro, Philip J. |author5=Shara, Michael M. |year=2011 |title=WISEP J180026.60+013453.1: A nearby late-L Dwarf near the Galactic Plane |journal=The Astronomical Journal |volume=142 | issue=5 | pages=171 |arxiv=1109.0054 |doi=10.1088/0004-6256/142/5/171 |bibcode=2011AJ....142..171G|s2cid=118596629 }}

{{cite journal | title=Properties of the Nearby Brown Dwarf WISEP J180026.60+013453.1 | last1=Gizis | first1=John E. | last2=Burgasser | first2=Adam J. | last3=Vrba | first3=Frederick | display-authors=1 | journal=The Astronomical Journal | volume=150 | issue=6 | at=179 | date=2015 | arxiv=1509.04690 | bibcode=2015AJ....150..179G | doi=10.1088/0004-6256/150/6/179 | s2cid=118641133 }}

{{cite web

| url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=WISEP+J180026.60%2B013453.1

| title=WISEP J180026.60+013453.1 -- Brown Dwarf (M<0.08solMass)

| work=SIMBAD

| publisher=Centre de données astronomiques de Strasbourg

| access-date=2012-12-24}}

}}

Category:Brown dwarfs

Category:L-type brown dwarfs

Category:Ophiuchus

Category:WISE objects