2MASS J05311676-6901041

SUSPECTED LMC   Equatorial coordinates α =  82.819808 ± 0.067100 | 05 31 16.754050 δ =  -69.017787 ± 0.066200 | -69 01 04.034148   Constellation Dorado Symbiotic IR Type S+IR🡕 Source: Akras, S., Guzman-Ramirez, L., Leal-Ferreira, M. L., et al., 2019, ApJS, 240, 21, 2019ApJS..240…21A Spectral Type   Magnitude range (V)   Outbursts No

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Identifiers

2MASS J05311676-6901041	GSC –	TYC –	WRAY –
SIMBAD 2MASS J05311676-6901041	HIP –	SAO –	Hen –
BD –	IRAS –	GAIA DR2 4658437360224633472	ESO –
HD –	2MASS J05311676-6901041	WISE J053116.75-690104.0	AAVSO –

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Position

Right ascension (°)	82.819808 ± 0.067100refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G	Parallax (mas)	–	Reddening E(B-V) (mag)	0.671 ± 0.091refSchlafly, E. F., Finkbeiner, D. P., 2011, ApJ, 737, 103, 2011ApJ…737..103S
Declination (°)	-69.017787 ± 0.066200refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G	Distance (kpc)	49.97 ± 0.19refPietrzyński, G., Graczyk, D., Gieren, W., et al., 2013, Nature, 495, 76, 2013Natur.495…76P
Galactic longitude (°)	279.468707 ± 0.066200refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G	Proper motion in α (mas/yr)	1.275 ± 0.127refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G
Galactic latitude (°)	-32.340679 ± 0.067100refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G	Proper motion in δ (mas/yr)	0.271 ± 0.154refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G

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Observations

U (mag)	20.15refKamath, D., Wood, P. R., Van Winckel, H., 2015, MNRAS, 454, 1468, 2015MNRAS.454.1468K	X-Ray		Flickering
B (mag)	18.38refKamath, D., Wood, P. R., Van Winckel, H., 2015, MNRAS, 454, 1468, 2015MNRAS.454.1468K	X-Ray type		Outbursts	No
V (mag)	17.61refKamath, D., Wood, P. R., Van Winckel, H., 2015, MNRAS, 454, 1468, 2015MNRAS.454.1468K	IUE	No	Type
R (mag)	16.45refKamath, D., Wood, P. R., Van Winckel, H., 2015, MNRAS, 454, 1468, 2015MNRAS.454.1468K	IRAS flux at 12 μm (Jy)		IPmax (eV)	35.1refKamath, D., Wood, P. R., Van Winckel, H., 2015, MNRAS, 454, 1468, 2015MNRAS.454.1468K
I (mag)	13.94refKamath, D., Wood, P. R., Van Winckel, H., 2015, MNRAS, 454, 1468, 2015MNRAS.454.1468K	IRAS flux at 25 μm (Jy)		OVI lines	NorefKamath, D., Wood, P. R., Van Winckel, H., 2015, MNRAS, 454, 1468, 2015MNRAS.454.1468K
G (mag)	15.80refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G	IRAS flux at 60 μm (Jy)
J (mag)	12.37refCutri, R. M., Skrutskie, M. F., van Dyk, S., et al., 2003, VizieR On-line Data Catalog: II/246, 2003yCat.2246….0C	IRAS flux at 100 μm (Jy)
H (mag)	11.37refCutri, R. M., Skrutskie, M. F., van Dyk, S., et al., 2003, VizieR On-line Data Catalog: II/246, 2003yCat.2246….0C	WISE W1 (mag)	10.87refCutri, R. M., et al., 2014, I II/328, 2014yCat.2328….0C
K (mag)	10.98refCutri, R. M., Skrutskie, M. F., van Dyk, S., et al., 2003, VizieR On-line Data Catalog: II/246, 2003yCat.2246….0C	WISE W2 (mag)	10.80refCutri, R. M., et al., 2014, I II/328, 2014yCat.2328….0C
L (mag)		WISE W3 (mag)	8.99refCutri, R. M., et al., 2014, I II/328, 2014yCat.2328….0C
		WISE W4 (mag)	7.19refCutri, R. M., et al., 2014, I II/328, 2014yCat.2328….0C
		Radio
		Radio flux (mJy)

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Orbit

Orbital period (days)		γ velocity (km/h)		Size of giant’s orbit (AU)
Eccentricity		RV of giant (km/h)		Separation (AU)
Inclination (°)		Inferior conj. of giant (JD)		Mass function
Ephemeris type				Mass ratio
Ephemeris T0 (JD)

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Cool component

Spectral type		Mass (M⊙)	0.74refKamath, D., Wood, P. R., Van Winckel, H., 2015, MNRAS, 454, 1468, 2015MNRAS.454.1468K	Pulsation
Eff. temperature (K)	5843 ± 250refKamath, D., Wood, P. R., Van Winckel, H., 2015, MNRAS, 454, 1468, 2015MNRAS.454.1468K 3589refAkras, S., Guzman-Ramirez, L., Leal-Ferreira, M. L., et al., 2019, ApJS, 240, 21, 2019ApJS..240…21A	Radius (R⊙)		Type
IR type	S+IR🡕 Source: Akras, S., Guzman-Ramirez, L., Leal-Ferreira, M. L., et al., 2019, ApJS, 240, 21, 2019ApJS..240…21A, refAkras, S., Guzman-Ramirez, L., Leal-Ferreira, M. L., et al., 2019, ApJS, 240, 21, 2019ApJS..240…21A	Luminosity (L⊙)	5369refKamath, D., Wood, P. R., Van Winckel, H., 2015, MNRAS, 454, 1468, 2015MNRAS.454.1468K	Pulsation period (days)
Metallicity [Fe/H]	-1.9refKamath, D., Wood, P. R., Van Winckel, H., 2015, MNRAS, 454, 1468, 2015MNRAS.454.1468K			Ephemeris type
				Ephemeris T0 (JD)

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Hot component

Type/Spectra		Mass (M⊙)		Spin period (min)
Eff. temperature (K)		Radius (R⊙)		Accretion disk
Lower limit (K)		Luminosity (L⊙)
Upper limit (K)

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Links

SIMBAD     CDS Portal

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Notes

Suspected in Kamath et al. (2015) based on its spectra.

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References

• Akras, S., Guzman-Ramirez, L., Leal-Ferreira, M. L., et al., 2019, ApJS, 240, 21, 2019ApJS..240…21A
• Kamath, D., Wood, P. R., Van Winckel, H., 2015, MNRAS, 454, 1468, 2015MNRAS.454.1468K

Last updated: May 2, 2019 @ 10:55 am