Observing supernovae from the control room of the IRTF at 14,000 ft. on Mauna Kea, Hawai'i

Recent Publications for G. H. "Howie" Marion A Catalog of Near-Infrared Spectra from Type Ia Supernovae Authors: Marion, G. H., Höflich, P., Gerardy, C. L., Vacca, W. D., Wheeler, J. C., and Robinson, E. L. 2008, AJ (submitted) We present 41 near-infrared spectra from Type Ia supernovae. We identify major spectral features and discuss the implications for the physics of the explosion. The large sample size permits us to show that NIR spectral development is uniform for SNe Ia. We show that nearly the entire progenitor must be burned in the explosion and that the chemical structure of burning products are distributed in radial layers. From Shock Breakout to Peak and Beyond; Extensive Panchromatic Observations of the Aspherical Type Ib Supernova 2008D associated with Swift X-ray Transient 080109 Authors: Modjaz, M., Marion, G. H., et al. 2008, ApJ (Submitted, astro-ph/arXiv:0805.2201) We present extensive early photometric and spectroscopic (optical and near-infrared) data on supernova (SN) 2008D as well as X-ray data on the associated X-ray transient (XRT) 080109. The NIR spectra of Marion, et al. are shown to be critical diagnostics for Type Ib/c supernovae. Signatures of Isotopes in Thermonuclear Supernovae Authors: Höflich, P., Gerardy, C. L., Quimby, R. and Marion, H. 2006, NewAR, 50, 470 We study the observational signatures of thermonuclear burning fronts in SNe Ia and discuss evidence for off-center DDT transitions. New observations suggest that our current picture of deflagration fronts is incomplete. CBAT 1305 (2008) Authors: Marion, H., Garnavich, P., Gerardy, C. L., Rudy, R. J., Lynch, D. K., Russell, R. W., Woodward, C. E. We use a NIR spectrum obtained by Marion to identify SN 2008ax as a Type Ib supernova. This object had previously been classified as a Type IIb. GCNC 7188 (2008) Authors: Marion, H., Garnavich, P., and Gerardy, C. A very early NIR spectrum of SN 2008D which has been associated with a gamma-ray burst. We describe features near 1.01 and 0.80 microns that are similar to previous observations of SNe Ib/c. CBAT 1176 (2007) Authors: Garnavich, P., Marion, H., Challis, P., Blondin, S., and Kirshner, R. Observation of the host galaxy of SN 2007qe that significantly increases the measured redshift and changes the velocity of the unusual CaII feature. CBAT 1145 (2007) Authors: Marion, H. and Garnavich, P. Identification of SN 2007qe as a peculiar Type-Ia supernova before maximum light and comment on the unusual CaII feature. Low Carbon Abundance in Type Ia Supernovae Authors: Marion, G. H., Höflich, P., Wheeler, J. C., Robinson, E. L., Gerardy, C. L., and Vacca, W. D. 2006, ApJ 635, 1392 (astro-ph/0601614) X-treme Stars You Can See Authors: C. Renée James and Howie Marion April 2006, Astronomy Magazine, Vol. 34, No.4 Asymmetric Supernovae: New Physics and Implications for Nucleosynthesis Authors: Wheeler, J. C., Höflich, P., Gerardy, C., Akiyama, S. and Marion, G. H. 2005, ASPC, 336, 247 IAUC 8371 (2004) Authors: Gerardy, C. L., Marion, G. H., Shetrone, M., and Deglman, F. Identification of Supernova 2004da in NGC 6901 as a Ia (pec.) soon after max IAUC 8337 (2004) Authors: Marion, G. H., Gerardy, C. L., Odewahn, S., and Graver, M. Identification of Supernova 2004bl in MCG +00-31-42 as a Ia near max SN 2003du: Signatures of the Circumstellar Environment in a Normal Type Ia Supernova? Authors: Gerardy, C. L., Hoeflich, P., Quimby, R., Wang, L., Wheeler, J. C., Fesen, R. A., Marion, G. H., Nomoto, K. and Schaefer, B. E. 2004, ApJ, 607, 391 (astro-ph/0309639) IAUC 8275 (2004) Authors: Gerardy, C. L. and Marion, G. H. Identification of SN 2004I as a Type II supernova. IAUC 8273 (2004) Authors: Gerardy, C. L. and Marion, G. H. Identification of SN 2004H as Type Ia supernova with a strong silicon feature at 580nm indicating a subluminous SN Ia. Near-infrared spectroscopy of stripped-envelope supernovae Authors: Gerardy, C. L., Fesen, R. A., Marion, G. H., Höflich, P., Wheeler, J. C., Nomoto, K. and Motohara, K. 2004, cetd.conf., 57 Near Infrared Spectra of Type Ia Supernovae Authors: Marion, G. H., P. Hoeflich, W. D. Vacca and J. C. Wheeler 2003, ApJ , 591, 316 (astro-ph/0306470) Physics of SNe Ia and Cosmology Authors: Hoeflich, P., Gerardy, C., Khokhlov, A., Linder, E., and Marion, G. H. 2003, in ``Stellar Candles for the Extragalactic Distance Scale'', eds. Gieren et al., Lecture Notes in Physics (astro-ph/0301334) IAUC 7860 (2002) Authors: Marion, G. H., Höflich, P., Vacca, W. D. and Wheeler, J. C. Identification of several features in the near infrared spectrum of hypernova SN 2002ap. IAUC 7732 (2001) Authors: Marion, G. H., Höflich, P., Vacca, W. D. and Wheeler, J. C. Announcement of first identification of supernova type using infrared spectra. SN2001en is a type Ia, near maximum light. Constraints on Type Ia Supernovae from Near Infrared Spectra, Authors: Marion, G. H., Hoeflich, P., and Wheeler, J. C. 2001, RMxAC, 10, 190, in proc. of "The Seventh Texas-Mexico Conference on Astrophysics: Flows, Blows, and Glows," eds. W. Lee and S. Torres-Peimbert, RevMexAA (Serie de Conferencias) (astro-ph 0006414) Evidence Against an Association Between Gamma-Ray Bursts and Type I Supernovae - A condensed version of the paper below Authors: C. Graziani, D.Q. Lamb, and G.H. Marion 1999, A&AS, 138, 469, in proc. of "Gamma-Ray Bursts in the Afterglow Era", Nov. 1998, Rome, F. Frontera & L. Piro eds., A&A Suppl. Ser. (astro-ph 9909025) Evidence Against an Association Between Gamma-Ray Bursts and Type I Supernovae, Authors: C. Graziani, D.Q. Lamb, and G.H. Marion 1998, submitted to ApJ but never published (astro-ph 9810374) Prototype Test Results of the Solar Tower Atmospheric Cherenkov Effect Experiment (STACEE), Authors: The STACEE Collaboration (inlcudes G.H.Marion) 1998, Nuclear Instruments & Methods, A408, 468-485 (astro-ph 9704037) Howie helped design and fabricate the secondary optics for this High Energy Gamma-ray detector. Low Mass Density Wide Field Far-IR/Submillimeter Telescope Systems, Author: Mark Dragovan, submitted to ApJ Letters, includes details of work Howie did with membrane mirror structures (astro-ph/0001241)