Photometric observations of the Type Ia SN 2002er in UGC 10743

Pignata, G.; Patat, F.; Benetti, S.; Блинников, С. И.; Hillebrandt, W.; Kotak, R.; Leibundgut, B.; Mazzali, P. A.; Meikle, P.; Qiu, Y. L.; Ruiz‐Lapuente, P.; Smartt, S. J.; Sorokina, E. I.; Stritzinger, M. D.; Stehle, M.; Turatto, M.; Marsh, T. R.; Martín-Luis, F.; McBride, Neil; Méndez, J.; Morales-Rueda, L.; Narbutis, D.; Street, R. A.

doi:10.1111/j.1365-2966.2004.08308.x

Cited by 67 publications

(31 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This technique has previously been applied to a number of type Ia SNe (e.g. Stritzinger et al 2002;Pignata et al 2004Pignata et al , 2008. Application of the S-correction to the I-band data substantially reduced the scatter in the light curve.…”

Section: Data Acquisition and Reductionmentioning

confidence: 99%

Extensive optical and near-infrared observations of the nearby, narrow-lined type Ic SN 2007gr: days 5 to 415

Hunter

Valenti

Kotak

et al. 2009

A&A

Self Cite

120

100

View full text Add to dashboard Cite

We present photometric and spectroscopic observations at optical and near-infrared wavelengths of the nearby type Ic supernova 2007gr. These represent the most extensive data-set to date of any supernova of this sub-type, with frequent coverage from shortly after discovery to more than one year post-explosion. We deduce a rise time to B-band maximum of 11.5 ± 2.7 d. We find a peak B-band magnitude of M B = −16.8, and light curves which are remarkably similar to the so-called "hypernova" SN 2002ap. In contrast, the spectra of SNe 2007gr and 2002ap show marked differences, not least in their respective expansion velocities. We attribute these differences primarily to the density profiles of their progenitor stars at the time of explosion i.e. a more compact star for SN 2007gr compared to SN 2002ap. From the quasi-bolometric light curve of SN 2007gr, we estimate that 0.076 ± 0.010 M of 56 Ni was produced in the explosion. Our near-infrared (IR) spectra clearly show the onset and disappearance of the first overtone of carbon monoxide (CO) between ∼70 to 175 d relative to B-band maximum. The detection of the CO molecule implies that ionised He was not microscopically mixed within the carbon/oxygen layers. From the optical spectra, near-IR light curves, and colour evolution, we find no evidence for dust condensation in the ejecta out to about +400 d. Given the combination of unprecedented temporal coverage, and high signal-to-noise data, we suggest that SN 2007gr could be used as a template object for supernovae of this sub-class.

show abstract

Section: Data Acquisition and Reductionmentioning

confidence: 99%

Extensive optical and near-infrared observations of the nearby, narrow-lined type Ic SN 2007gr: days 5 to 415

Hunter

Valenti

Kotak

et al. 2009

A&A

Self Cite

120

100

View full text Add to dashboard Cite

show abstract

“…In our analysis, however, it was calibrated as Cousins I. Also, for the LT Sloan photometry we subsequently applied an S-correction (Stritzinger et al 2002;Pignata et al 2004) to convert the SN magnitudes to the standard JohnsonCousins photometric system, finding an average correction of ∆U ∼ 0.04, ∆R ∼ 0.01 and ∆I ∼ −0.10. In the case of SN 2009dd the discovery magnitude reported in Cortini & Dimai (2009) has been revised and reported as R band in Tab.…”

Section: Data Summarymentioning

confidence: 99%

Moderately luminous Type II supernovae

Inserra

Pastorello

Turatto

et al. 2013

A&A

Self Cite

View full text Add to dashboard Cite

Context. Core-collapse Supernovae (CC-SNe) descend from progenitors more massive than about 8 M . Because of the young age of the progenitors, the ejecta may eventually interact with the circumstellar medium (CSM) via highly energetic processes detectable in the radio, X-ray, ultraviolet (UV) and, sometimes, in the optical domains. Aims. In this paper we present ultraviolet, optical and near infrared observations of five type II SNe, namely SNe 2009dd, 2007pk, 2010aj, 1995ad, and 1996W. Together with few other SNe they form a group of moderately luminous type II events. We investigate the photometric similarities and differences among these bright objects. We also attempt to characterise them by analysing the spectral evolutions, in order to find some traces of CSM-ejecta interaction. Methods. We collected photometry and spectroscopy with several telescopes in order to construct well-sampled light curves and spectral evolutions from the photospheric to the nebular phases. Both photometry and spectroscopy indicate a degree of heterogeneity in this sample. Modelling the data of SNe 2009dd, 2010aj and 1995ad allows us to constrain the explosion parameters and the properties of the progenitor stars.

show abstract

“…Pignata et al (2004) have calculated the responses of most of the instruments used by the ESC. However, we repeated the process for the 5 instruments most frequently used to observe SN 2003du: AFOSC at Asiago 1.82 m telescope, DOLORES at TNG, ALFOSC at NOT, CAFOS at Calar Alto 2.2 m telescope and BAO 60-cm telescope imager, using the new extensive spectrophotometry of Landolt stars in .…”

Section: A1 Photometric Systems Responsesmentioning

confidence: 99%

SN 2003du: 480 days in the life of a normal type Ia supernova

Stanishev¹,

Goobar²,

Benetti

et al. 2007

A&A

Self Cite

162

156

View full text Add to dashboard Cite

Aims. We present a study of the optical and near-infrared (NIR) properties of the Type Ia Supernova (SN Ia) 2003du.Methods. An extensive set of optical and NIR photometry and low-resolution long-slit spectra was obtained using a number of facilities. The observations started 13 days before B-band maximum light and continued for 480 days with exceptionally good time sampling. The optical photometry was calibrated through the S-correction technique. Results. The UBVRIJHK light curves and the color indices of SN 2003du closely resemble those of normal SNe Ia. SN 2003du reached a B-band maximum of 13.49 ± 0.02 mag on JD2 452 766.38 ± 0.5. We derive a B-band stretch parameter of 0.988 ± 0.003, which corresponds to ∆m 15 = 1.02 ±0.05, indicative of a SN Ia of standard luminosity. The reddening in the host galaxy was estimated by three methods, and was consistently found to be negligible. Using an updated calibration of the V and JHK absolute magnitudes of SNe Ia, we find a distance modulus µ = 32.79 ± 0.15 mag to the host galaxy, UGC 9391. We measure a peak uvoir bolometric luminosity of 1.35(±0.20) × 10 43 erg s −1 and Arnett's rule implies that M56 Ni 0.68 ± 0.14 M of 56 Ni was synthesized during the explosion. Modeling of the uvoir bolometric light curve also indicates M56 Ni in the range 0.6−0.8 M . The spectral evolution of SN 2003du at both optical and NIR wavelengths also closely resembles normal SNe Ia. In particular, the Si ii ratio at maximum R(Si ii) = 0.22 ± 0.02 and the time evolution of the blueshift velocities of the absorption line minima are typical. The pre-maximum spectra of SN 2003du showed conspicuous high-velocity features in the Ca ii H&K doublet and infrared triplet, and possibly in Si ii λ6355, lines. We compare the time evolution of the profiles of these lines with other well-observed SNe Ia and we suggest that the peculiar pre-maximum evolution of Si ii λ6355 line in many SNe Ia is due to the presence of two blended absorption components.

show abstract

Photometric observations of the Type Ia SN 2002er in UGC 10743

Cited by 67 publications

References 41 publications

Extensive optical and near-infrared observations of the nearby, narrow-lined type Ic SN 2007gr: days 5 to 415

Extensive optical and near-infrared observations of the nearby, narrow-lined type Ic SN 2007gr: days 5 to 415

Moderately luminous Type II supernovae

SN 2003du: 480 days in the life of a normal type Ia supernova

Contact Info

Product

Resources

About