New Online Database of Symbiotic Variables: CM Aql

Constellation
Aquila

Equatorial coordinates
α = 19 03 35.137
δ = -03 03 15.462

Galactic coordinates
l = 31.5936°
b = -4.0933°

Suspected	1954^Ref
Confirmed	1960^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	Yes^Ref - Z And^Ref

Identifiers

CM Aql	IRAS -	GSC2.4.2 S9MK521947	AAVSO 000-BDD-650
SIMBAD V* CM Aql	Pan-STARRS 104332858964105293	SAO -	VSX 1252
GAIA DR3 4261573650399645184	SkyMapper 190335.14-030315.1	WRAY -	GCVS CM Aql
2MASS J19033514-0303153	HIP -	Hen -	BD -
WISE J190335.14-030315.3	TYC -	ESO -	HD -

Symbiotic Catalogs

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

Position

Right ascension (°)	285.8964^Ref	Parallax (mas)	0.143±0.032^Ref	Reddening E(B-V) (mag)	0.76±0.04^Ref ^{, Note}
Declination (°)	-3.0543^Ref	Distance (kpc)	5.51^Ref ^{, Note}, 4.98^Ref ^{, Note}
Galactic longitude (°)	31.5936^Ref	Proper motion in α (mas/yr)	-4.14±0.03^Ref
Galactic latitude (°)	-4.0933^Ref	Proper motion in δ (mas/yr)	-6.55±0.03^Ref

Observations

X-Ray	No^Ref	IR type	S^Ref	Radio	Yes^Ref
X-Ray type	-	J (mag)	9.21^Ref	Flickering	Yes?^Ref
GALEX FUV (mag)	-	H (mag)	8.10^Ref	Outbursts	Yes^Ref
GALEX NUV (mag)	-	K (mag)	7.69^Ref	Outburst type	Z And^Ref
IUE	No^Ref	WISE W1 (mag)	7.50^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	7.51^Ref	Resolved nebula	No^Ref
U (mag)	-	WISE W3 (mag)	6.99^Ref	IPmax (eV)	54.4^Ref
B (mag)	16.54^Ref	WISE W4 (mag)	6.23^Ref	[O III] lines	Yes^Ref
V (mag)	14.67^Ref	IRAS 12μm (Jy)	-	He II lines	Yes^Ref
R (mag)	13.32^Ref	IRAS 25μm (Jy)	-	[Fe VII] lines	No^Ref
I (mag)	-	IRAS 60μm (Jy)	-	O VI lines	No^Ref
BP (mag)	14.92^Ref	IRAS 100μm (Jy)	-
G (mag)	13.02^Ref	AKARI S09 (Jy)	0.13^Ref
RP (mag)	11.71^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	1058?^Ref	γ velocity (km/h)	59.87±3.12^Ref	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	K3 III^Ref, M4^Ref	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 ARAS Database

Notes

Included in the list of stars with combination spectra of Bidelman (1954) based on the observations of Harwood (1925). The classification was confirmed by Herbig (1960), who observed a spectrum of an M4 star with He II lines. Several outbursts were reported by Harwood (1960). In Munari et al. (2001), it was suggested that the reported outbursts might not have been actual outbursts but continuous variability. A definite outburst was detected in 2020, as reported in Munari et al. (2020).

References

Allen, D. A., 1980, MNRAS, 192, 521, 1980MNRAS.192..521A
Bidelman, W. P., 1954, ApJS, 1, 175, 1954ApJS....1..175B
Harwood, M., 1925, BHarO, 826, 3, 1925BHarO.826....3H
Harwood, M., 1960, AnLei, 21, 387, 1960AnLei..21..387H
Herbig, G. H., 1960, ApJ, 131, 632, 1960ApJ...131..632H
Munari, U., Jurdana-Šepić, R., Moro, D., 2001, A&A, 370, 503, 2001A&A...370..503M
Munari, U., Ochner, P., Dallaporta, S. et al., 2020, ATel, 13647, 1, 2020ATel13647....1M

CM Aql