2012ApJ...755...37H

Query : 2012ApJ...755...37H

2012ApJ...755...37H - Astrophys. J., 755, 37 (2012/August-2)

Elemental abundances in the ejecta of old classical novae from late-epoch Spitzer spectra.

HELTON L.A., GEHRZ R.D., WOODWARD C.E., WAGNER R.M., VACCA W.D., EVANS A., KRAUTTER J., SCHWARZ G.J., SHENOY D.P. and STARRFIELD S.

Abstract (from CDS):

We present Spitzer Space Telescope mid-infrared IRS spectra, supplemented by ground-based optical observations, of the classical novae V1974 Cyg, V382 Vel, and V1494 Aql more than 11, 8, and 4 years after outburst, respectively. The spectra are dominated by forbidden emission from neon and oxygen, though in some cases, there are weak signatures of magnesium, sulfur, and argon. We investigate the geometry and distribution of the late time ejecta by examination of the emission line profiles. Using nebular analysis in the low-density regime, we estimate lower limits on the abundances in these novae. In V1974 Cyg and V382 Vel, our observations confirm the abundance estimates presented by other authors and support the claims that these eruptions occurred on ONe white dwarfs (WDs). We report the first detection of neon emission in V1494 Aql and show that the system most likely contains a CO WD.

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Journal keyword(s): infrared: stars - novae, cataclysmic variables - stars: abundances - stars: individual (V1974 Cygni, V382 Velorum, V1494 Aquilae)

Simbad objects: 31

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Number of rows : 31
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 V* V723 Cas No* 01 05 05.3607320352 +54 00 40.238720388   15.817 15.484 15.044   ~ 216 0
2 V* GK Per No* 03 31 12.0098863320 +43 54 15.469951212   14.139 13.090 12.589   K1IV 986 0
3 LMCN 1991-04a No* 05 03 44.96 -70 18 13.5           ~ 62 0
4 LMCN 1990-01a No* 05 23 21.79 -69 29 48.4           ~ 61 0
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
6 V* V382 Vel No* 10 44 48.3975221712 -52 25 31.168268472   15.945 15.737 16.173   ~ 201 0
7 V* V1065 Cen No* 11 43 10.121 -58 04 04.08       18.4   ~ 50 0
8 V* GQ Mus No* 11 52 02.4296561952 -67 12 20.986391520           ~ 271 0
9 NOVA Cru 1996 CV* 12 10 31.3654140720 -61 45 09.851097688           ~ 39 0
10 V* V888 Cen No* 13 02 31.8127250040 -60 11 36.147831720           ~ 38 0
11 V* V842 Cen No* 14 35 52.5683885352 -57 37 35.391092232           ~ 160 0
12 V* V2214 Oph No* 17 12 01.6941423448 -29 37 32.782241938           ~ 87 0
13 V* V1186 Sco CV* 17 12 51.2672500922 -30 56 37.699681585           ~ 46 0
14 V* V977 Sco CV* 17 51 50.3646327864 -32 31 57.478406412           ~ 59 0
15 V* V4160 Sgr No* 18 14 13.83 -32 12 28.5           ~ 69 0
16 BD-14 5037 s*b 18 25 06.1817902200 -14 38 57.717990780 9.87 9.72 8.41 7.03 5.92 B1.5Ia+ 114 0
17 V* V693 CrA No* 18 41 57.8 -37 31 14           ~ 125 0
18 V* V827 Her No* 18 43 42.59 +15 19 18.9           ~ 82 0
19 V* V838 Her No* 18 46 31.4714863335 +12 14 02.104189516           ~ 304 0
20 V* QV Vul No* 19 04 40.2842064624 +21 46 14.155475808           ~ 120 0
21 V* V1425 Aql No* 19 05 26.5876835574 -01 42 18.189880804           ~ 90 0
22 V* V1721 Aql CV* 19 06 28.60 +07 06 44.5           ~ 20 0
23 V* V1494 Aql No* 19 23 05.3600241442 +04 57 19.811779912           ~ 168 0
24 V* PW Vul CV* 19 26 05.0526411168 +27 21 58.133941164           ~ 207 0
25 V* NQ Vul No* 19 29 14.7520337784 +20 27 59.568491916           ~ 171 0
26 V* QU Vul No* 20 26 46.0200167016 +27 50 43.163406959           ~ 277 0
27 V* V1974 Cyg No* 20 30 31.6546001712 +52 37 50.837478240           ~ 597 0
28 V* HR Del No* 20 42 20.3468874528 +19 09 39.305636208   12.380 12.404 12.508   ~ 515 0
29 V* V1500 Cyg No* 21 11 36.5809818696 +48 09 01.952490204           ~ 820 0
30 V* V1668 Cyg No* 21 42 35.3128941397 +44 01 54.435904913           ~ 233 0
31 V* V705 Cas No* 23 41 47.2354174125 +57 31 00.826200729       16.055   ~ 207 0

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