Optical Photometry and Spectroscopy of the SN 1998bw–like Type Ic Supernova 2002ap

By R. Foley, M. Papenkova, B. Swift, A. Filippenko, Weidong Li, P. Mazzali, Ryan Chornock, D. Leonard, S. V. van Dyk. 2003

216 citations recorded by the source corpus.

We present optical photometric and spectral data of the peculiar Type Ic supernova SN 2002ap. Photometric coverage includes UBVRI bands from 2002 January 30, the day after discovery, through 2002 December 12. There are five early‐time spectra and eight in the nebular phase. We determine that SN 2002ap is similar to SN 1997ef and the gamma‐ray burst–associated SN 1998bw with respect to spectral and photometric characteristics. The nebular spectra of SN 2002ap present the largest Mg i] λ4571 to [O i] λλ6300, 6364 ratio of any supernova spectra yet published, suggesting that the progenitor of SN 2002ap was a highly stripped star. Comparing the nebular spectra of SN 1985F and SN 2002ap, we notice several similar features, casting the classification of SN 1985F as a normal Type Ib supernova in doubt. We also present nebular modeling of SN 2002ap and find that the object ejected ≳1.5 M⊙ of material within the outer velocity shell of the nebula (∼5500 km s−1) and synthesized ∼0.09 M⊙ of 56Ni.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/546f99ccdff9f0059b30d2e9eed6f89e046ff917

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In Astronomy and Astrophysics

1. E. Berger
2. A. Filippenko
3. N. Smith
4. S. Smartt
5. Ryan Chornock
6. Weidong Li
7. B. Metzger
8. A. Riess

Citations in the corpus

• TYPE Iax SUPERNOVAE: A NEW CLASS OF STELLAR EXPLOSION (2012, methodology): “We employed our own IDL routines to flux calibrate the data and remove telluric lines using the well-exposed continua of the spectrophotometric standard stars (Wade & Horne 1988; Foley et al. 2003).”
• The fast, luminous ultraviolet transient AT2018cow: extreme supernova, or disruption of a star by an intermediate-mass black hole? (2018, methodology): “Using the bolometric luminosity at 20 days and scaling relative to SN2002ap (Mazzali et al. 2002; Foley et al. 2003), we estimate MNi < 0.05M⊙ .”
• SPECTRAL EVOLUTION OF THE EXTRAORDINARY TYPE IIn SUPERNOVA 2006gy (2009, methodology): “The spectra were reduced using standard techniques (e.g., Foley et al. 2003).”
• Berkeley Supernova Ia Program – I. Observations, data reduction and spectroscopic sample of 582 low-redshift Type Ia supernovae (2012, methodology): “Previous descriptions of our methods can be found in Matheson et al. (2000), Li et al. (2001), Foley et al. (2003), Foley et al. (2007), and Matheson et al. (2008), but the discussion below supersedes them.”
• VARIABLE SODIUM ABSORPTION IN A LOW-EXTINCTION TYPE Ia SUPERNOVA, (2009, methodology): “These data were reduced in IRAF and IDL following normal procedures (for details, see Foley et al. 2003; Matheson et al. 2000; Horne 1986).”
• The Carnegie Supernova Project: The Low‐Redshift Survey (2005, methodology): “Various telescopes at Lick Observatory have also been used for photometry and spectroscopy (e.g., Foley et al. 2003), but those observations will be described in separate papers.”
• Nebular emission-line profiles of Type Ib/c supernovae - Probing the ejecta asphericity (2009, background): “…see e.g. Mazzali et al. 2005), but also the better agreement of [O i] and Mg i] in SN 2002ap early on: SN 2002ap features the strongest Mg i] λ4571 line ever observed (Foley et al. 2003) but only weak Fe, and it is hence not unexpected that Mg i] quickly dominates over photospheric residuals (Fig.”
• SN 2008ha: AN EXTREMELY LOW LUMINOSITY AND EXCEPTIONALLY LOW ENERGY SUPERNOVA (2009, methodology): “We employed our own IDL routines to flux calibrate the data and remove telluric lines using the wellexposed continua of the spectrophotometric standards (Wade & Horne 1988; Foley et al. 2003).”
• On the Rates of Gamma-Ray Bursts and Type Ib/c Supernovae (2006, unknown): “—(1) Mazzali et al. 2004; (2) Filippenko 1997; (3) Galama et al. 1998; (4) Hatano et al. 2001; (5) Mazzali et al. 2002; (6) Foley et al. 2003; (7) Filippenko et al. 2002; (8) Filippenko & Chornock 2003; (9) Stanek et al. 2003; (10) Hjorth et al. 2003; (11) Filippenko et al. 2003; (12) Matheson et…”
• SN 2006jc: A Wolf-Rayet Star Exploding in a Dense He-rich Circumstellar Medium (2006, methodology): “All spectral data were reduced using standard techniques (e.g., Foley et al. 2003).”
• Photometry and Spectroscopy of GRB 030329 and Its Associated Supernova 2003dh: The First Two Months (2003, methodology): “…the OT,we m odeled the spectrum asthe sum ofa power-law continuum and a peculiarType Ic SN.Speci cally,we chose for com parison SN 1998bw (Patatetal.2001),SN 1997ef(Iwam otoetal.2000),and SN 2002ap (using our own as yet unpublished spectra,but see,e.g.,Kinugasa et al. 2002;Foley et al.2003).”
• COSMOLOGICAL CONSTRAINTS FROM MEASUREMENTS OF TYPE Ia SUPERNOVAE DISCOVERED DURING THE FIRST 1.5 yr OF THE Pan-STARRS1 SURVEY (2013, methodology): “…by the National Optical Astronomy Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc. (AURA) under cooperative agreement with the National Science Foundation (NSF). standards (Wade & Horne 1988; Foley et al. 2003, 2009a; Silverman et al. 2012a).”
• OPTICAL SPECTRA OF 73 STRIPPED-ENVELOPE CORE-COLLAPSE SUPERNOVAE (2014, background): “This SN Ic-bl in M74 was well observed (e.g., Gal-Yam et al. 2002; Leonard et al. 2002; Mazzali et al. 2002; Berger et al. 2002; Foley et al. 2003), and here we present 15 new unpublished CfA spectra for this SN. SN 2003jd.”