The Astrophysical Journal Letters (Jan 2024)
Extended Shock Breakout and Early Circumstellar Interaction in SN 2024ggi
- Manisha Shrestha,
- K. Azalee Bostroem,
- David J. Sand,
- Griffin Hosseinzadeh,
- Jennifer E. Andrews,
- Yize Dong,
- Emily Hoang,
- Daryl Janzen,
- Jeniveve Pearson,
- Jacob E. Jencson,
- M. J. Lundquist,
- Darshana Mehta,
- Aravind P. Ravi,
- Nicolás Meza Retamal,
- Stefano Valenti,
- Peter J. Brown,
- Saurabh W. Jha,
- Colin Macrie,
- Brian Hsu,
- Joseph Farah,
- D. Andrew Howell,
- Curtis McCully,
- Megan Newsome,
- Estefania Padilla Gonzalez,
- Craig Pellegrino,
- Giacomo Terreran,
- Lindsey Kwok,
- Nathan Smith,
- Michaela Schwab,
- Aidan Martas,
- Ricardo R. Munoz,
- Gustavo E. Medina,
- Ting S. Li,
- Paula Diaz,
- Daichi Hiramatsu,
- Brad E. Tucker,
- J. C. Wheeler,
- Xiaofeng Wang,
- Qian Zhai,
- Jujia Zhang,
- Anjasha Gangopadhyay,
- Yi Yang,
- Claudia P. Gutiérrez
Affiliations
- Manisha Shrestha
- ORCiD
- Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA ; [email protected]
- K. Azalee Bostroem
- ORCiD
- Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA ; [email protected]
- David J. Sand
- ORCiD
- Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA ; [email protected]
- Griffin Hosseinzadeh
- ORCiD
- Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA ; [email protected]
- Jennifer E. Andrews
- ORCiD
- Gemini Observatory , 670 North A‘ohoku Place, Hilo, HI 96720-2700, USA
- Yize Dong
- ORCiD
- Department of Physics and Astronomy, University of California , Davis, 1 Shields Avenue, Davis, CA 95616-5270, USA
- Emily Hoang
- ORCiD
- Department of Physics and Astronomy, University of California , Davis, 1 Shields Avenue, Davis, CA 95616-5270, USA
- Daryl Janzen
- ORCiD
- Department of Physics & Engineering Physics, University of Saskatchewan , 116 Science Place, Saskatoon, SK S7N 5E2, Canada
- Jeniveve Pearson
- ORCiD
- Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA ; [email protected]
- Jacob E. Jencson
- ORCiD
- IPAC, California Institute of Technology , 1200 East California Boulevard, Pasadena, CA 91125, USA
- M. J. Lundquist
- ORCiD
- W. M. Keck Observatory , 65-1120 Māmalahoa Highway, Kamuela, HI 96743-8431, USA
- Darshana Mehta
- ORCiD
- Department of Physics and Astronomy, University of California , Davis, 1 Shields Avenue, Davis, CA 95616-5270, USA
- Aravind P. Ravi
- ORCiD
- Department of Physics and Astronomy, University of California , Davis, 1 Shields Avenue, Davis, CA 95616-5270, USA
- Nicolás Meza Retamal
- ORCiD
- Department of Physics and Astronomy, University of California , Davis, 1 Shields Avenue, Davis, CA 95616-5270, USA
- Stefano Valenti
- ORCiD
- Department of Physics and Astronomy, University of California , Davis, 1 Shields Avenue, Davis, CA 95616-5270, USA
- Peter J. Brown
- ORCiD
- Department of Physics and Astronomy, Texas A&M University , 4242 TAMU, College Station, TX 77843, USA
- Saurabh W. Jha
- ORCiD
- Department of Physics and Astronomy, Rutgers, the State University of New Jersey , 136 Frelinghuysen Road, Piscataway, NJ 08854-8019, USA
- Colin Macrie
- ORCiD
- Department of Physics and Astronomy, Rutgers, the State University of New Jersey , 136 Frelinghuysen Road, Piscataway, NJ 08854-8019, USA
- Brian Hsu
- ORCiD
- Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA ; [email protected]
- Joseph Farah
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California , Santa Barbara, CA 93106-9530, USA
- D. Andrew Howell
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California , Santa Barbara, CA 93106-9530, USA
- Curtis McCully
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA
- Megan Newsome
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California , Santa Barbara, CA 93106-9530, USA
- Estefania Padilla Gonzalez
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California , Santa Barbara, CA 93106-9530, USA
- Craig Pellegrino
- ORCiD
- Department of Astronomy, University of Virginia , Charlottesville, VA 22904, USA
- Giacomo Terreran
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California , Santa Barbara, CA 93106-9530, USA
- Lindsey Kwok
- ORCiD
- Department of Physics and Astronomy, Rutgers, the State University of New Jersey , 136 Frelinghuysen Road, Piscataway, NJ 08854-8019, USA
- Nathan Smith
- ORCiD
- Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA ; [email protected]
- Michaela Schwab
- ORCiD
- Department of Physics and Astronomy, Rutgers, the State University of New Jersey , 136 Frelinghuysen Road, Piscataway, NJ 08854-8019, USA
- Aidan Martas
- Department of Physics and Astronomy, University of California , Davis, 1 Shields Avenue, Davis, CA 95616-5270, USA
- Ricardo R. Munoz
- ORCiD
- Departamento de Astronomia, Universidad de Chile , Camino El Observatorio 1515, Las Condes, Santiago, Chile
- Gustavo E. Medina
- ORCiD
- David A. Dunlap Department of Astronomy and Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada
- Ting S. Li
- ORCiD
- David A. Dunlap Department of Astronomy and Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada
- Paula Diaz
- Departamento de Astronomia, Universidad de Chile , Camino El Observatorio 1515, Las Condes, Santiago, Chile
- Daichi Hiramatsu
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138-1516, USA; The NSF AI Institute for Artificial Intelligence and Fundamental Interactions , USA
- Brad E. Tucker
- Mt. Stromlo Observatory, The Research School of Astronomy and Astrophysics, Australian National University , ACT 2601, Australia
- J. C. Wheeler
- ORCiD
- University of Texas at Austin , 1 University Station C1400, Austin, TX 78712-0259, USA
- Xiaofeng Wang
- ORCiD
- Physics Department and Tsinghua Center for Astrophysics, Tsinghua University , Beijing, 100084, People's Republic of China
- Qian Zhai
- Yunnan Observatories (YNAO), Chinese Academy of Sciences (CAS) , Kunming, 650216, People's Republic of China
- Jujia Zhang
- ORCiD
- Yunnan Observatories (YNAO), Chinese Academy of Sciences (CAS) , Kunming, 650216, People's Republic of China; International Centre of Supernovae, Yunnan Key Laboratory , Kunming 650216, People's Republic of China
- Anjasha Gangopadhyay
- ORCiD
- Oskar Klein Centre, Department of Astronomy, Stockholm University , Albanova University Centre, SE-106 91 Stockholm, Sweden
- Yi Yang
- ORCiD
- Physics Department and Tsinghua Center for Astrophysics, Tsinghua University , Beijing, 100084, People's Republic of China
- Claudia P. Gutiérrez
- ORCiD
- Institut d’Estudis Espacials de Catalunya (IEEC) , Edifici RDIT, Campus UPC, 08860 Castelldefels (Barcelona), Spain; Institute of Space Sciences (ICE, CSIC) , Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, Spain
- DOI
- https://doi.org/10.3847/2041-8213/ad6907
- Journal volume & issue
-
Vol. 972,
no. 1
p. L15
Abstract
We present high-cadence photometric and spectroscopic observations of supernova (SN) 2024ggi, a Type II SN with flash spectroscopy features, which exploded in the nearby galaxy NGC 3621 at ∼7 Mpc. The light-curve evolution over the first 30 hr can be fit by two power-law indices with a break after 22 hr, rising from M _V ≈ −12.95 mag at +0.66 day to M _V ≈ −17.91 mag after 7 days. In addition, the densely sampled color curve shows a strong blueward evolution over the first few days and then behaves as a normal SN II with a redward evolution as the ejecta cool. Such deviations could be due to interaction with circumstellar material (CSM). Early high- and low-resolution spectra clearly show high-ionization flash features from the first spectrum to +3.42 days after the explosion. From the high-resolution spectra, we calculate the CSM velocity to be 37 ± 4 km s ^−1 . We also see the line strength evolve rapidly from 1.22 to 1.49 days in the earliest high-resolution spectra. Comparison of the low-resolution spectra with CMFGEN models suggests that the pre-explosion mass-loss rate of SN 2024ggi falls in the range of 10 ^−3 –10 ^−2 M _☉ yr ^−1 , which is similar to that derived for SN 2023ixf. However, the rapid temporal evolution of the narrow lines in the spectra of SN 2024ggi ( R _CSM ∼ 2.7 × 10 ^14 cm) could indicate a smaller spatial extent of the CSM than in SN 2023ixf ( R _CSM ∼ 5.4 × 10 ^14 cm), which in turn implies a lower total CSM mass for SN 2024ggi.
Keywords
- Core-collapse supernovae
- Type II supernovae
- Red supergiant stars
- Stellar mass loss
- Circumstellar matter
