VPHASDR2J175346.2-2848261.6

LIKELY MILKY WAY
 
Constellation
Sagittarius
Equatorial coordinates
α = 17 53 46.187
δ = -28 48 26.667
Galactic coordinates
l = 1.0272°
b = -1.4646°

Suspected 2019Ref
Confirmed -
Symbiotic IR type S?Ref
Hot component type shell-burning?Ref
Outbursts -

Identifiers

VPHASDR2J175346.2-2848261.6 IRAS - GSC2.4.2 S8DJ048139 AAVSO -
SIMBAD VPHAS J175346.2-284826.6 Pan-STARRS 73432684424281380 SAO - VSX -
GAIA DR3 4056614345105863040 SkyMapper 175346.18-284827.1 WRAY - GCVS -
2MASS J17534619-2848266 HIP - Hen - BD -
WISE J175346.14-284826.6 TYC - ESO - HD -

Symbiotic Catalogs

Bidelman (1954) - Allen (1984) - Belzcyński et al. (2001) -
Gaposchkin (1957) - Kenyon (1986) - Akras et al. (2019) -
Boyarchuk (1969) - Vaidis (1988, 1991) -

Position

Right ascension (°) 268.4424Ref Parallax (mas) 0.072±0.037Ref Reddening E(B-V) (mag) 1.66±0.16Ref, Note
Declination (°) -28.8074Ref Distance (kpc) 7.33Ref, Note, 6.86Ref, Note    
Galactic longitude (°) 1.0272Ref Proper motion in α (mas/yr) -2.81±0.04Ref    
Galactic latitude (°) -1.4646Ref Proper motion in δ (mas/yr) -0.33±0.03Ref    

Observations

X-Ray NoRef IR type S?Ref Radio -
X-Ray type - J (mag) 10.41Ref Flickering -
GALEX FUV (mag) - H (mag) 9.30Ref Outbursts -
GALEX NUV (mag) - K (mag) 8.79Ref Outburst type -
IUE NoRef WISE W1 (mag) 8.44Ref Jets -
FUSE NoRef WISE W2 (mag) 8.47Ref Resolved nebula -
U (mag) - WISE W3 (mag) 7.92Ref IPmax (eV) 35.1Ref
B (mag) - WISE W4 (mag) 6.23Ref [O III] lines YesRef
V (mag) - IRAS 12μm (Jy) - He II lines NoRef
R (mag) - IRAS 25μm (Jy) - [Fe VII] lines NoRef
I (mag) - IRAS 60μm (Jy) - O VI lines NoRef
BP (mag) 16.68Ref IRAS 100μm (Jy) -
G (mag) 14.59Ref AKARI S09 (Jy) -
RP (mag) 13.15Ref AKARI S18 (Jy) -

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 -
Eclipses -     Mass ratio -
Orbital ephemeris -        

Cool component

Spectral type MRef Mass (M) - Pulsation -
Eff. temperature (K) - Radius (R) - Type -
IR type S?Ref Luminosity (L) - Pulsation period (days) -
Metallicity [Fe/H] -     Pulsation ephemeris -

Hot component

Type/Spectral type - Mass (M) - Spin period (min) -
Shell-burning/Accreting-only shell-burning?Ref Radius (R) - Accretion disk -
Eff. temperature (K) - Luminosity (L) -    
Lower limit (K) -        
Upper limit (K) -        

Links

SIMBAD   CDS Portal


Notes

Initially identified as a potential symbiotic star through a machine learning approach by Akras et al. (2019), recent spectroscopic observations by Akras et al. (2021) reveal that it does not entirely meet the symbiotic criteria, notably lacking He II emission lines.


References

  • Akras, S., Gonçalves, D. R., Alvarez-Candal, A. et al., 2021, MNRAS, 502, 2, 2513, 2021MNRAS.502.2513A
  • Akras, S., Leal-Ferreira, M. L., Guzman-Ramirez, L. et al., 2019, MNRAS, 483, 4, 5077, 2019MNRAS.483.5077A


Last updated: April 12, 2021