Villum Fondent Project Project number 13261 Funding Period: Dec 2016 - Dec 2020 PI Associate Professor Maximilian Stritzinger at the Department of Physics and Astronomy Aarhus University Aarhus, Danmark
Supernovae (SN) are a linchpin for understanding the chemical evolution and star formation history of the Universe. However, key questions regarding the origins of SN persists and this proposal seeks to answer the question: What are the progenitor star systems of SN? This will be achieved by exploiting observations of SN discovered within hours to days of exploding by the "All-Sky Automated Survey for SN", which is for the first time in human history surveying the entire visible sky every other night. A key objective it to model the brightness evolution of infant SN to estimate their progenitor star's radius at the moment of explosion and thereby provide a direct indication of the type of star that exploded. We will also strive to obtain robust constraints on SN physics and identify any companion star, while 'flash spectroscopy' will unveil the nature of the circumstellar environment and the mass-loss history of the progenitors in the years prior to exploding.
NUTS (NOT [Nordic Optical Telescope] Un-biased Transient Survey) team
Refereed Publications Supported in full or in part by Villum Fonden funding:
2020: 18 refereed publications
Moriya, Stritzinger et al. 2020, A&A, 641, 148. The Carnegie Supernova Project II. Observations of SN 2014ab possibly revealing a 2010jl-like SN IIn with pre-existing dust
Burrow et al. 2020, ApJ, 901, 154. Carnegie Supernova Project II: Classification of Type Ia Supernovae
Stritzinger et al. 2020, A&A, 639, 103. Carnegie Supernova Project II. Observations of the intermediate luminosity red transient SNhunt120
Uddin et al. 2020, ApJ, 901, 143. The Carnegie Supernova Project-I: Correlation between Type Ia Supernovae and Their Host Galaxies from Optical to Near-infrared Bands
Hsiao et al. 2020, ApJ, 900, 140. Carnegie Supernova Project II: The Slowest Rising Type Ia Supernova LSQ14fmg and Clues to the Origin of Super-Chandrasekhar/03fg-like Events
Stritzinger et al. 2020, A&A, 639, 104. Carnegie Supernova Project II. Observations of the Luminous Red Nova AT 2014ej
Burns et al. 2020, ApJ, 895, 118. SN 2013aa and SN 2017cbv: Two Sibling Type Ia Supernovae in the spiral galaxy NGC 5643
Tomasella, Stritzinger et al. 2020, MNRAS, 496, 1132. Observations of the low-luminosity Type Iax supernova 2019gsc: a fainter clone of SN 2008ha?
Taddia, Stritzinger et al. 2020, A&A, 638, 92. The Carnegie Supernova Project II. The shock wave revealed through the fog: The strongly interacting Type IIn SN 2013L
Rodriguez et al. 2020, MNRAS, 494, 5882. Luminous Type II supernovae with low expansion velocities
Fox et al. 2020, MNRAS, 498, 517. The slow deminse of the long-lived SN 2015ip
Ashall et al. 2020, ApJ Letters, 895, 3. Carnegie Supernova Project-II: A new method to photometrically identify sub-types of extreme Type Ia Supernovae
Reynolds et al. 2020, MNRAS, 493, 1761. SN 2016gsd: An unusually luminous and linear type II supernova with high velocities
Clark et al. 2020, MNRAS, 492, 2208. LSQ13ddu: A rapidly-evolving stripped-envelope supernova with early circumstellar interaction signatures
Chen, Dong, Stritzinger et al. 2020, ApJ Letters, 889, 6. The Most Rapidly-Declining Type I Supernova 2019bkc/ATLAS19dqr
Tucker et al. 2020, MNRAS, 492, 1044. Clearing the Smoke: Nebular Spectra of 111 Type Ia Supernovae disfavor single degenerate progenitors
Takaro et al. 2020, MNRAS, 493, 986. Constraining Type Iax Supernova Progenitor Systems with Stellar Population Aging
Stritzinger et al. 2020, A&A, 643, 21. The Carnegie Supernova Project-II. Early observations and progenitor constraints of the Type Ib supernova LSQ13abf
2019: 19 refereed publications
Davis et al. 2019, ApJ, 887, 4. Carnegie Supernova Project-II. Near-infrared Spectroscopic Diversity of Type II Supernovae
Andrews et al. 2019, ApJ, 885, 43. SN 2017gmr: An energetic Type II-P supernova with asymmetries
Galbany et al. 2019, A&A, 720, 76. On the Ca-strong 1991bg-like type Ia supernova 2016hnk: evidence for a Chandrasekhar-mass explosion
Terreran et al., ApJ, 883, 147. SN 2016coi (ASASSN-16fp): an energetic H-stripped core-collapse supernova from a massive stellar progenitor with large mass loss
Onori et al. 2019, MNRAS, 489, 1463. Optical follow-up of the tidal disruption event iPTF16fnl
Pessi et al. 2019, MNRAS, 488, 4239. Comparison of the optical light curves of hydrogen-rich and hydrogen-poor type II supernovae
Ashall et al. 2019, MNRAS, 487, 582. GRB 16129B/SN 2016jca: a powerful stellar collapse
Valley et al. 2019, MNRAS, 487, 2372. ASASSN-18tb: A Most Unusual Type Ia Supernova Observed by TESS and SALT
Chen et al. 2019, ApJ, 880, 25. ASASSN-15pz: Revealing Significant Photometric Diversity Among 2009dc-like, Peculiar Type Ia Supernovae
Holmbo, Stritzinger et al. 2019, A&A, 627, 174. Discovery and progenitor constraints on the Type Ia supernova 2013gy
Ashall et al. 2019, ApJ, 878, 86. A Physical Basis for the H-band Blue-edge Velocity and Light-Curve Shape Correlation in Context of Type Ia Supernova Explosion Physics
Ashall et al. 2019, ApJ Letters, 875L, 14. Using Near-Infrared Spectroscopy to determine the location of the outer (56)Ni in Type Ia Supernovae
Holoien et al. 2019, MNRAS, 484, 1899. The ASAS-SN Bright Supernova Catalog - IV. 2017
Bose et al. 2019, ApJ Letters, 873, 3. Strongly Bipolar Inner Ejecta of the Normal Type IIP Supernova ASASSN-16at
Brown et al. 2019, MNRAS, 484, 3785. The Relative Specific Type Ia Supernovae Rate From Three Years of ASAS-SN
Shappee et al. 2019, ApJ, 870, 13. Seeing Double: ASASSN-18bt Exhibits a double-power-law Rise in the Early-Time K2 Light Curve
Scalzo et al. 2019, MNRAS, 483, 628. Probing type Ia supernova properties using bolometric light curves from the Carnegie Supernova Project and the CfA Supernova Group
Hsiao et al. 2019, PASP, 131, 4002. Carnegie Supernova Project-II: The Near-infrared Spectroscopy Program
Phillips et al. 2019, PASP, 131, 4001. Carnegie Supernova Project II: Extending the Near-Infrared Hubble Diagram for Type Ia Supernovae to z=0.1
2018: 24 published refereed papers and 1 conference proceeding
Cain et al. 2018, ApJ, 869, 162. Investigating the Unusual Spectroscopic Time-Evolution in SN 2012fr
Burns et al. 2018, ApJ, 869, 56. The Carnegie Supernova Project: Absolute Calibration and the Hubble Constant
Anderson et al. 2018, A&A, 620, 67. A nearby superluminous supernova with a long pre-maximum plateau and strong C II features
Prentice et al. 2018, ApJ Letters, 865L, 3. The Cow: discovery of a luminous, hot and rapidly evolving transient
Stritzinger et al. 2018c, ApJ Letters, 864, 35. Red vs Blue: Early observations of thermonuclear supernovae reveal two distinct populations?
Cai et al. 2018, MNRAS, 480, 3424. AT 2017be - a new member of the class of Intermediate-Luminosity Red Transients
Diamond et al. 2018, ApJ, 861, 119. Near-infrared Spectral Evolution of SN 2014J in the Nebular Phase and Implications for the Progenitor System
Contreras et al. 2018, AJ, 859, 24. SN 2012fr: Ultraviolet, Optical, and Near-Infrared Light Curves of a Type Ia Supernova Observed Within a Day of First Light
Ashall et al. 2018, MNRAS, 477, 153. Abundance Tomography of the fast-declining type Ia supernovae SN 2007on and 2011iv
Anderson et al. 2018, Nature Astronomy, 2, 574. The lowest-metallicity type II supernova from the highest mass red-supergiant progenitor
de Jaeger et al. 2018, MNRAS, 476, 4592. Observed Type II supernova colours from the Carnegie Supernova Project-I
Mazzali et al. 2018, MNRAS, 476, 2905. The nebular spectra of the transitional Type Ia Supernovae 2007on and 2011iv: broad, multiple components indicate aspherical explosion cores
Gall, Stritzinger, et al. 2018, A&A, 611, 58. Two transitional type Ia supernovae located in the Fornax cluster member NGC 1404: SN 2007on and SN 2011iv
Pastorello et al. 2018, MNRAS, 474, 197. Supernovae 2016bdu and 2005gl, and their link with SN 2009ip-like transients: another piece of the puzzle
Lyman et al. 2018, MNRAS, 473, 1359. Investigating the diversity of supernovae type Iax: A MUSE and NOT spectroscopic study of their environments
Taddia, Stritzinger et al. 2018, A&A, 609, 136. The Carnegie Supernova Project I: analysis of stripped-envelope core-collapse supernova light curves
Stritzinger et al. 2018b, A&A, 609,135. The Carnegie Supernova Project I: Methods to estimate host-galaxy reddening of stripped-envelope supernovae
Stritzinger et al. 2018a, A&A, 609, 134. The Carnegie Supernova Project I: Photometry data release of low-redshift stripped-envelope core-collapse supernovae
Vallely et al. 2018, MNRAS, 475, 2344. The highly luminous Type Ibn supernova ASASSN-14ms
Kuncarayakti et al. 2018, ApJ Letters, 854L, 14. SN 2017dio: A Type-Ic Supernova Exploding in a Hydrogen-rich Circumstellar Medium
Tartaglia et al. 2018, ApJ, 853, 62. The Early Detection and Follow-up of the Highly Obscured Type II Supernova 2016ija/DLT16am
Bose et al. 2018, ApJ, 853, 57. Gaia17biu/SN 2017egm in NGC 3191: The Closest Hydrogen-poor Superluminous Supernova to Date Is in a "Normal," Massive, Metal-rich Spiral Galaxy
Karoff et al. 2018, ApJ, 852, 46. The Influence of Metallicity on Stellar Differential Rotation and Magnetic Activity
Sako et al. 2018, PASP, 130, 4002. The Data Release of the Sloan Digital Sky Survey-II Supernova Survey
Stritzinger and Moriya 2018, Workshop 8: Supernovae, IAU Symposium 339, Southern Horizons in Time-Domain Astronomy, e-print: arXiv:1801.06643
2017: 13 published refereed papers
Gutierrez et al. 2017b, ApJ, 850, 90. Type II Supernova Spectral Diversity. II. Spectroscopic and Photometeric Correlations
Gutierrez et al. 2017a, ApJ, 850, 89. Type II Supernova Spectral Diversity. I. Observations, Sample Characterization, and Spectral Line Evolution
Holoien et al. 2017, MNRAS, 471, 4966. The ASAS-SN Bright Supernova Catalog -- III. 2016
Krisciunas et al. 2017, AJ, 154, 211. The Carnegie Supernova Project I: Third Photometry Data Release of Low-Redshift Type Ia Supernovae and Other White Dwarf Explosions
Hosseinzadeh et al., 2017, ApJ Letters, 854, 11. Early Blue Excess from the Type Ia Supernova 2017cbv and Implications for its Progenitor
Jiang et al. 2017, Nature, 550, 80. A Hybrid Type Ia Supernova with Early Flash -- The Smoking Gun of Helium-Detonation Trigger
Hoeflich et al. 2017, ApJ, 846, 58. Light Curve Properties of Type Ia Supernovae: Theory vs. Observations or Taking the Magic out of CMAGIC, Twins, and other Flukes of Nature
Kangas et al. 2017, MNRAS, 469, 1246. Gaia16apd -- a link between fast-and slowly-declining type I superluminous supernovae
Leloudas et al. 2017, ApJ Letters, 837, 14. Polarimetry of the superluminous SN 2015bn with the Nordic Optical Telescope
Brown et al. 2017, ApJ, 836, 232. Reddened, Redshifted, or Intrinsically Red? Understanding Near-Ultraviolet Colors of Type Ia supernovae
Tartaglia et al. 2017, ApJ Letters, 836, 12. The progenitor and early evolution of the Type IIb SN 2016gkg
de Jaeger et al. 2017, ApJ, 835, 166. A Type II Supernova Hubble diagram from the CSP-I, SDSS-II, and SNLS surveys
Pian et al. 2017, MNRAS, 466, 1848. Optical photometry and spectroscopy of the low-luminosity, broad-lined Ic supernova iPTF15dld
Project Activities
2020
covid-19 pandemic
Led new supernova followup pilot project using ZTF and Alerce data stream, April-May
Hosted small workshop on software development, Ebeltoft, DK, March 2020
2019
PI and PhD contributions talks at NUTS2 workshop, Padua, Italy, October 2019
PI extended contribution talk at transient conference ESO, Garching, Germany, September 2019
Group hosted team meeting Boulder, Colorado, USA, July 2019
PI and PhD contributions talks at CSP-II team meeting, St. George Island, Florida, USA, Feburary 2019
2018
PI Contribution talk at Massive Stars and Supernovae, Argentine, November 2018
PI Research visits to European Southern Obsrvatory, Garching, Germany, September 2018
PI Research visit to Stockholm Observatory, Sweden, October 2018
Co-hosted CSP team meeting at University of Hawaii, HI, USA, Late July (PI, PhD)
Sabbatical at University of Hawaii, HI, USA, May 6 - July 29 (PI)
Research visit Carnegie Observatories, Pasadena, CA, USA, May 1-6 (PI)
Invited Talk at workshop: New advances in NIR type Ia supernova science, Pittsburg, PA, USA, April 10-13 (PI)
Invited Review Talk at 2018 EWASS (European Week of Astronomy and Space Sciences) meeting, Liverpool, UK, April 3-5 (PI)
Hosting NUTS team meeting at Aarhus University, Denmark, March 6-9 (PI)
Presented poster and co-chaired Workshop 8: Supernovae at the IAU Symposium 339 "Southern Horizons in Time-Domain Astronomy"Click here for conference proceeding, Sutherland, South Africa, Novermber 9-13 (PI)
Talk at CSP workshop at Carnegie Observatories, Pasadena, California, USA (PI, Phd student)
Talk at CSP team meeting Sandbjerg, Denmark (PI, Phd Student)
Talk at ASAS-SN team meeting, Columbus, OH. USA (PI)
Talk at the NUTS team meeting Stockholm, Sweden (PI)
Expansion of ASAS-SN with 3 additional units, making the global network now at 5 units
Research visits: The University of Oklahoma, Norman OK, USA (PI), and the Southwest Research Institute, Boulder, CO, USA (PI)
Visitors
C. Burns, Carnegie Observatories, USA: March 2020
L. Galbany, Un. of Granada, Spain: March 2020
S. Schultz, Weizmann Institute of Science, Israel: September 2019
C. Ashall, University of Hawaii, USA
G. Leloudas, DTU Space, Denmark, October 2018
S. Schulze, Weizmann Institute of Science, Israel: October 2018
Takashi Moriya, National Astronomical Observatory of Japan, Tokyo, Japan: October 2018
Francesco Taddia, Stockholm Observatory, Stockholm, Sweden: October 2018
Eddie Baron on sabbatical visit from The Un. of Oklaholma, OK, USA: Funded by Aarhus University College of Science and Technology from Sept. 15 to Dec. 15.
Paolo Mazzali, James Moore Un., Liverpool, England: August 2018
Subo Dong, Peking University, Beijing, China: March 2018
Elena Pian, Un. of Pisa, Italy: July-August 2018
S. Schulze, Weizmann Institute of Science, Israel: August 2018
Elena Pian, Un. of Pisa, Italy: July-August 2017
Christopher Ashall, James Moore Un., Liverpool, England: July-August 2017
Paolo Mazzali, James Moore Un., Liverpool, England: July-August 2017
Takashi Moriya, University of Bonn: July-August 2017
Francesco Taddia, University of Stockholm, Stockholm, Sweden: A week in March 2017
Joe Lyman, University of Warwick, UK: A week in March 2017
Joel Johansson, Wiezmann Institute of Science, Israel: A few days in Feburary 2017
Giorgos Leloudas, Weizmann Institute of Science, Israel: A few days in Janurary 2017