2017ApJ...834..107B


Query : 2017ApJ...834..107B

2017ApJ...834..107B - Astrophys. J., 834, 107-107 (2017/January-2)

Common envelope ejection for a luminous red nova in M101.

BLAGORODNOVA N., KOTAK R., POLSHAW J., KASLIWAL M.M., CAO Y., CODY A.M., DORAN G.B., ELIAS-ROSA N., FRASER M., FREMLING C., GONZALEZ-FERNANDEZ C., HARMANEN J., JENCSON J., KANKARE E., KUDRITZKI R.-P., KULKARNI S.R., MAGNIER E., MANULIS I., MASCI F.J., MATTILA S., NUGENT P., OCHNER P., PASTORELLO A., REYNOLDS T., SMITH K., SOLLERMAN J., TADDIA F., TERRERAN G., TOMASELLA L., TURATTO M., VREESWIJK P.M., WOZNIAK P. and ZAGGIA S.

Abstract (from CDS):

We present the results of optical, near-infrared, and mid-infrared observations of M101 OT2015-1 (PSN J14021678+5426205), a luminous red transient in the Pinwheel galaxy (M101), spanning a total of 16 years. The light curve showed two distinct peaks with absolute magnitudes Mr -12.4 and Mr≃-12, on 2014 November 11 and 2015 February 17, respectively. The spectral energy distributions during the second maximum show a cool outburst temperature of ~3700 K and low expansion velocities (~-300 km s–1) for the H I, Ca II, Ba II, and K I lines. From archival data spanning 15-8 years before the outburst, we find a single source consistent with the optically discovered transient, which we attribute to being the progenitor; it has properties consistent with being an F-type yellow supergiant with L ∼ 8.7 × 104L, Teff~7000 K, and an estimated mass of M1=18±1M. This star has likely just finished the H-burning phase in the core, started expanding, and is now crossing the Hertzsprung gap. Based on the combination of observed properties, we argue that the progenitor is a binary system, with the more evolved system overfilling the Roche lobe. Comparison with binary evolution models suggests that the outburst was an extremely rare phenomenon, likely associated with the ejection of the common envelope of a massive star. The initial mass of the primary fills the gap between the merger candidates V838 Mon (5-10 M) and NGC 4490-OT (30 M).

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): binaries: close - novae, cataclysmic variables - stars: individual: (M101 OT2015-1, PSN J14021678+5426205) - stars: massive - stars: winds, outflows - stars: winds, outflows

VizieR on-line data: <Available at CDS (J/ApJ/834/107): table1.dat table2.dat table3.dat>

CDS comments: Table 4: sequence stars are not in SIMBAD.

Simbad objects: 29

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Number of rows : 29
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 M31N 2015-01a No* 00 42 07.99 +40 55 01.1           ~ 58 0
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12634 1
3 NAME M31 RV No* 00 43 02.433 +41 12 56.17           M0 111 0
4 NAME NGC 300 OT2008-1 ev 00 54 34.16 -37 38 28.6           ~ 123 1
5 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5834 1
6 NAME UGC 2773 OT2009-1 SN? 03 32 07.24 +47 47 39.6           ~ 55 1
7 V* S Dor sg* 05 18 14.3570612088 -69 15 01.149576912 9.08 10.39 10.25 9.74 9.14 A5Iaeq 378 0
8 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17416 0
9 SN 1987A SN* 05 35 28.020 -69 16 11.07           SNIIpec 4931 2
10 HD 269858 s*b 05 36 43.6936418088 -69 29 47.451149232   10.24 10.15 9.95 9.05 LBV 283 2
11 V* V838 Mon No* 07 04 04.8221494992 -03 50 50.648894412       15.181 14.51 M10+B3V 426 0
12 V* VY CMa s*r 07 22 58.3261352189 -25 46 03.194390594 12.01 10.068 8.691 7.938   M5Iae 1103 0
13 LEE 96 C* 08 04 30.7200456936 -03 07 48.514000908       12.39   C5,5eJ 14 0
14 SN 2009kn SN* 08 09 43.04 -17 44 51.3           SNIIn 45 1
15 SN 2015bh SN* 09 09 34.96 +33 07 20.4           SNIIn 62 1
16 * eta Car Em* 10 45 03.5377808928 -59 41 04.051599720 6.37 7.03 6.48 4.90 4.41 LBV 2435 0
17 PTF 10fqs SN* 12 18 50.16 +14 26 39.2       20.0   ~ 35 0
18 NAME M85 OT2006-1 No* 12 25 23.82 +18 10 56.2     19.30     ~ 65 1
19 NAME NGC 4490-OT2011 ev 12 30 41.85 +41 37 49.8           ~ 40 0
20 V* V744 Cen LP* 13 39 59.8072612685 -49 56 59.855085294 8.65 7.50 6.00     M6III 77 0
21 NAME M101 OT2015-1 SN? 14 02 16.78 +54 26 20.5   19.19 17.57 16.92 16.26 ~ 46 0
22 SN 2011fe SN* 14 03 05.711 +54 16 25.22   10.12 10.06     SNIa-norm 668 1
23 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2909 2
24 NGC 5806 AGN 15 00 00.4088018736 +01 53 28.779594792   12.40 11.70 10.94 11.6 ~ 281 1
25 V* V1309 Sco No* 17 57 32.9368332984 -30 43 09.965039880   16.9   14.8   ~ 258 0
26 V* V4332 Sgr CV* 18 50 36.6958376520 -21 23 28.925017944         14.37 K8/M0e 173 0
27 * P Cyg s*b 20 17 47.2020844 +38 01 58.552724 4.66 5.24 4.82 4.28 4.02 B1-2Ia-0ep 1176 1
28 SN 2008S ev 20 34 45.33 +60 05 58.4   19.89 18.79 17.93   SNIIn? 239 1
29 SN 2009ip s*b 22 23 08.26 -28 56 52.4           LBV 346 0

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