2015ApJ...812..132G

Query : 2015ApJ...812..132G

2015ApJ...812..132G - Astrophys. J., 812, 132 (2015/October-3)

The early infrared temporal development of nova Delphini 2013 (V339 DEL) observed with the stratospheric observatory for infrared astronomy (SOFIA) and from the ground.

GEHRZ R.D., EVANS A., HELTON L.A., SHENOY D.P., BANERJEE D.P.K., WOODWARD C.E., VACCA W.D., DYKHOFF D.A., ASHOK N.M., CASS A.C., CARLON R.L., CORGAN D.T., EYRES S.P.S., JOSHI V., KELLER L.D., KRAUTTER J., LIIMETS T., RUSHTON M. and STARRFIELD S.

Abstract (from CDS):

We present ground-based infrared photometry, JHK spectroscopy, and 5-28 µm SOFIA FORCAST spectroscopy documenting the early temporal development of Nova Delphini 2013 (V339 Del). We derive a distance of ∼4.5 kpc using data available from the early expansion of the fireball. This distance gives an outburst luminosity of ∼8.3x105 making V339 Del the most luminous CO nova on record. Our data provide new constraints on the ejected gas mass and the dust yield in fast CO novae. The ejected gas mass as estimated by the cutoff wavelength during the free-free emission phase is ∼7.5x10–5 There is evidence for the formation of ∼1.2(±0.4)x10–7 of dust about 102 days after outburst. The gas to dust ratio of ∼470/1-940/1 implies that dust production was much less efficient in V339 Del than is the case for most CO novae.

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Journal keyword(s): circumstellar matter - infrared: stars - novae, cataclysmic variables - stars: individual: V339 Del - stars: winds, outflows

Simbad objects: 13

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Number of rows : 13
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 * bet And PM* 01 09 43.92388 +35 37 14.0075 5.58 3.62 2.05 0.81 -0.19 M0+IIIa 572 1
2 * alf Cet LP? 03 02 16.77307 +04 05 23.0596 6.10 4.17 2.53 1.18 0.02 M1.5IIIa 480 1
3 LMCN 1991-04a No* 05 03 44.96 -70 18 13.5           ~ 62 0
4 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2417 1
5 V* LW Ser No* 17 51 50.89 -14 43 50.6           ~ 83 0
6 V* V838 Her No* 18 46 31.4714863335 +12 14 02.104189516           ~ 304 0
7 V* PW Vul CV* 19 26 05.0526411168 +27 21 58.133941164           ~ 207 0
8 V* V339 Del No* 20 23 30.6873337580 +20 46 03.765339899   17.50 16.86     ~ 225 0
9 HD 194631 * 20 26 01.2239006376 +20 34 55.917912612   7.99 7.87     A2 13 0
10 V* QU Vul No* 20 26 46.0200167016 +27 50 43.163406959           ~ 277 0
11 * 29 Vul PM* 20 38 31.3388452704 +21 12 04.185221724 4.73 4.80 4.82 4.79 4.83 A0Va(_sh) 139 0
12 V* V1668 Cyg No* 21 42 35.3128941397 +44 01 54.435904913           ~ 233 0
13 * bet Peg LP* 23 03 46.45746 +28 04 58.0336 6.05 4.09 2.42 0.92 -0.40 M2.5II-III 606 1

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