SIMBAD references

2016ApJ...826..144S - Astrophys. J., 826, 144-144 (2016/August-1)

The young and bright type Ia supernova ASASSN-14lp: discovery, early-time observations, first-light time, distance to NGC 4666, and progenitor constraints.

SHAPPEE B.J., PIRO A.L., HOLOIEN T.-S., PRIETO J.L., CONTRERAS C., ITAGAKI K., BURNS C.R., KOCHANEK C.S., STANEK K.Z., ALPER E., BASU U., BEACOM J.F., BERSIER D., BRIMACOMBE J., CONSEIL E., DANILET A.B., DONG S., FALCO E., GRUPE D., HSIAO E.Y., KIYOTA S., MORRELL N., NICOLAS J., PHILLIPS M.M., POJMANSKI G., SIMONIAN G., STRITZINGER M., SZCZYGIEL D.M., TADDIA F., THOMPSON T.A., THORSTENSEN J., WAGNER M.R. and WOZNIAK P.R.

Abstract (from CDS):

On 2014 December 9.61, the All-sky Automated Survey for SuperNovae (ASAS-SN or "Assassin") discovered ASASSN-14lp just ∼2 days after first light using a global array of 14 cm diameter telescopes. ASASSN-14lp went on to become a bright supernova (V=11.94 mag), second only to SN 2014J for the year. We present prediscovery photometry (with a detection less than a day after first light) and ultraviolet through near-infrared photometric and spectroscopic data covering the rise and fall of ASASSN-14lp for more than 100 days. We find that ASASSN-14lp had a broad light curve ( Δ{m}_{15}(B)=0.80±0.05 ), a B-band maximum at 2457015.82±0.03, a rise time of {16.94}_{-0.10}^{+0.11} days, and moderate host-galaxy extinction ( E{(B-V)}_host=0.33±0.06 ). Using ASASSN-14lp, we derive a distance modulus for NGC 4666 of µ=30.8±0.2 , corresponding to a distance of 14.7±1.5 Mpc. However, adding ASASSN-14lp to the calibrating sample of Type Ia supernovae still requires an independent distance to the host galaxy. Finally, using our early-time photometric and spectroscopic observations, we rule out red giant secondaries and, assuming a favorable viewing angle and explosion time, any nondegenerate companion larger than 0.34 {R}_☉ .

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: distances and redshifts - supernovae: individual: (ASASSN-14lp, Type Ia, NGC 4666, ASASSN-14lp) - white dwarfs

VizieR on-line data: <Available at CDS (J/ApJ/826/144): table1.dat table2.dat>

Simbad objects: 12

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2020.09.23-20:35:49

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