Testing supernovae Ia distance measurement methods with SN 2011fe

J. Vinkó, K. Sárneczky, K. Takáts, G. H. Marion, T. Hegedüs, I. B. Bíró, T. Borkovits, E. Szegedi-Elek, A. Farkas, P. Klagyivik, L. L. Kiss, T. Kovács, A. Pál, R. Szakáts, N. Szalai, T. Szalai, K. Szatmáry, A. Szing, K. Vida, J. C. Wheeler

Resultado de la investigación: Article

32 Citas (Scopus)

Resumen

Aims. The nearby, bright, almost completely unreddened Type Ia supernova 2011fe in M101 provides a unique opportunity to test both the precision and the accuracy of the extragalactic distances derived from SNe Ia light curve fitters. Methods. We applied the current, public versions of the independent light curve fitting codes MLCS2k2 and SALT2 to compute the distance modulus of SN 2011fe from high-precision, multi-color (BVRI) light curves. Results. The results from the two fitting codes confirm that 2011fe is a "normal" (not peculiar) and only slightly reddened SN Ia. New unreddened distance moduli are derived as 29.21 ± 0.07 mag (D ~ 6.95 ± 0.23 Mpc, MLCS2k2), and 29.05 ± 0.07 mag (6.46 ± 0.21 Mpc). Conclusions. Despite the very good fitting quality achieved with both light curve fitters, the resulting distance moduli are inconsistent by 2σ. Both are marginally consistent (at ~1σ) with the Hubble Space Telescope key project distance modulus for M101. The SALT2 distance is in good agreement with the recently revised Cepheid-and TRGB-distance to M101. Averaging all SN-and Cepheid-based estimates, the absolute distance to M101 is ~6.6 ± 0.5 Mpc.

Idioma originalEnglish
Número de artículoA12
PublicaciónAstronomy and Astrophysics
Volumen546
DOI
EstadoPublished - 1 ene 2012

Huella dactilar

measurement method
supernovae
light curve
curve fitting
Hubble Space Telescope
color
code
estimates

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Citar esto

Vinkó, J., Sárneczky, K., Takáts, K., Marion, G. H., Hegedüs, T., Bíró, I. B., ... Wheeler, J. C. (2012). Testing supernovae Ia distance measurement methods with SN 2011fe. Astronomy and Astrophysics, 546, [A12]. https://doi.org/10.1051/0004-6361/201220043
Vinkó, J. ; Sárneczky, K. ; Takáts, K. ; Marion, G. H. ; Hegedüs, T. ; Bíró, I. B. ; Borkovits, T. ; Szegedi-Elek, E. ; Farkas, A. ; Klagyivik, P. ; Kiss, L. L. ; Kovács, T. ; Pál, A. ; Szakáts, R. ; Szalai, N. ; Szalai, T. ; Szatmáry, K. ; Szing, A. ; Vida, K. ; Wheeler, J. C. / Testing supernovae Ia distance measurement methods with SN 2011fe. En: Astronomy and Astrophysics. 2012 ; Vol. 546.
@article{c408df88d44b4be6be1bb1d8fcb3e018,
title = "Testing supernovae Ia distance measurement methods with SN 2011fe",
abstract = "Aims. The nearby, bright, almost completely unreddened Type Ia supernova 2011fe in M101 provides a unique opportunity to test both the precision and the accuracy of the extragalactic distances derived from SNe Ia light curve fitters. Methods. We applied the current, public versions of the independent light curve fitting codes MLCS2k2 and SALT2 to compute the distance modulus of SN 2011fe from high-precision, multi-color (BVRI) light curves. Results. The results from the two fitting codes confirm that 2011fe is a {"}normal{"} (not peculiar) and only slightly reddened SN Ia. New unreddened distance moduli are derived as 29.21 ± 0.07 mag (D ~ 6.95 ± 0.23 Mpc, MLCS2k2), and 29.05 ± 0.07 mag (6.46 ± 0.21 Mpc). Conclusions. Despite the very good fitting quality achieved with both light curve fitters, the resulting distance moduli are inconsistent by 2σ. Both are marginally consistent (at ~1σ) with the Hubble Space Telescope key project distance modulus for M101. The SALT2 distance is in good agreement with the recently revised Cepheid-and TRGB-distance to M101. Averaging all SN-and Cepheid-based estimates, the absolute distance to M101 is ~6.6 ± 0.5 Mpc.",
keywords = "Galaxies: individual: M101, Supernovae: individual: SN 2011fe",
author = "J. Vink{\'o} and K. S{\'a}rneczky and K. Tak{\'a}ts and Marion, {G. H.} and T. Heged{\"u}s and B{\'i}r{\'o}, {I. B.} and T. Borkovits and E. Szegedi-Elek and A. Farkas and P. Klagyivik and Kiss, {L. L.} and T. Kov{\'a}cs and A. P{\'a}l and R. Szak{\'a}ts and N. Szalai and T. Szalai and K. Szatm{\'a}ry and A. Szing and K. Vida and Wheeler, {J. C.}",
year = "2012",
month = "1",
day = "1",
doi = "10.1051/0004-6361/201220043",
language = "English",
volume = "546",
journal = "Astronomy and Astrophysics",
issn = "0004-6361",
publisher = "EDP Sciences",

}

Vinkó, J, Sárneczky, K, Takáts, K, Marion, GH, Hegedüs, T, Bíró, IB, Borkovits, T, Szegedi-Elek, E, Farkas, A, Klagyivik, P, Kiss, LL, Kovács, T, Pál, A, Szakáts, R, Szalai, N, Szalai, T, Szatmáry, K, Szing, A, Vida, K & Wheeler, JC 2012, 'Testing supernovae Ia distance measurement methods with SN 2011fe', Astronomy and Astrophysics, vol. 546, A12. https://doi.org/10.1051/0004-6361/201220043

Testing supernovae Ia distance measurement methods with SN 2011fe. / Vinkó, J.; Sárneczky, K.; Takáts, K.; Marion, G. H.; Hegedüs, T.; Bíró, I. B.; Borkovits, T.; Szegedi-Elek, E.; Farkas, A.; Klagyivik, P.; Kiss, L. L.; Kovács, T.; Pál, A.; Szakáts, R.; Szalai, N.; Szalai, T.; Szatmáry, K.; Szing, A.; Vida, K.; Wheeler, J. C.

En: Astronomy and Astrophysics, Vol. 546, A12, 01.01.2012.

Resultado de la investigación: Article

TY - JOUR

T1 - Testing supernovae Ia distance measurement methods with SN 2011fe

AU - Vinkó, J.

AU - Sárneczky, K.

AU - Takáts, K.

AU - Marion, G. H.

AU - Hegedüs, T.

AU - Bíró, I. B.

AU - Borkovits, T.

AU - Szegedi-Elek, E.

AU - Farkas, A.

AU - Klagyivik, P.

AU - Kiss, L. L.

AU - Kovács, T.

AU - Pál, A.

AU - Szakáts, R.

AU - Szalai, N.

AU - Szalai, T.

AU - Szatmáry, K.

AU - Szing, A.

AU - Vida, K.

AU - Wheeler, J. C.

PY - 2012/1/1

Y1 - 2012/1/1

N2 - Aims. The nearby, bright, almost completely unreddened Type Ia supernova 2011fe in M101 provides a unique opportunity to test both the precision and the accuracy of the extragalactic distances derived from SNe Ia light curve fitters. Methods. We applied the current, public versions of the independent light curve fitting codes MLCS2k2 and SALT2 to compute the distance modulus of SN 2011fe from high-precision, multi-color (BVRI) light curves. Results. The results from the two fitting codes confirm that 2011fe is a "normal" (not peculiar) and only slightly reddened SN Ia. New unreddened distance moduli are derived as 29.21 ± 0.07 mag (D ~ 6.95 ± 0.23 Mpc, MLCS2k2), and 29.05 ± 0.07 mag (6.46 ± 0.21 Mpc). Conclusions. Despite the very good fitting quality achieved with both light curve fitters, the resulting distance moduli are inconsistent by 2σ. Both are marginally consistent (at ~1σ) with the Hubble Space Telescope key project distance modulus for M101. The SALT2 distance is in good agreement with the recently revised Cepheid-and TRGB-distance to M101. Averaging all SN-and Cepheid-based estimates, the absolute distance to M101 is ~6.6 ± 0.5 Mpc.

AB - Aims. The nearby, bright, almost completely unreddened Type Ia supernova 2011fe in M101 provides a unique opportunity to test both the precision and the accuracy of the extragalactic distances derived from SNe Ia light curve fitters. Methods. We applied the current, public versions of the independent light curve fitting codes MLCS2k2 and SALT2 to compute the distance modulus of SN 2011fe from high-precision, multi-color (BVRI) light curves. Results. The results from the two fitting codes confirm that 2011fe is a "normal" (not peculiar) and only slightly reddened SN Ia. New unreddened distance moduli are derived as 29.21 ± 0.07 mag (D ~ 6.95 ± 0.23 Mpc, MLCS2k2), and 29.05 ± 0.07 mag (6.46 ± 0.21 Mpc). Conclusions. Despite the very good fitting quality achieved with both light curve fitters, the resulting distance moduli are inconsistent by 2σ. Both are marginally consistent (at ~1σ) with the Hubble Space Telescope key project distance modulus for M101. The SALT2 distance is in good agreement with the recently revised Cepheid-and TRGB-distance to M101. Averaging all SN-and Cepheid-based estimates, the absolute distance to M101 is ~6.6 ± 0.5 Mpc.

KW - Galaxies: individual: M101

KW - Supernovae: individual: SN 2011fe

UR - http://www.scopus.com/inward/record.url?scp=84866922151&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201220043

DO - 10.1051/0004-6361/201220043

M3 - Article

AN - SCOPUS:84866922151

VL - 546

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

M1 - A12

ER -

Vinkó J, Sárneczky K, Takáts K, Marion GH, Hegedüs T, Bíró IB y otros. Testing supernovae Ia distance measurement methods with SN 2011fe. Astronomy and Astrophysics. 2012 ene 1;546. A12. https://doi.org/10.1051/0004-6361/201220043