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SN2005da: A Spectroscopic and Photometric Analysis of a Peculiar Type Ic Supernova

Williamson, Jacob
http://rave.ohiolink.edu/etdc/view?acc_num=ouashonors1493239779235968

Abstract Details

2017, Bachelor of Sciences, Ohio University, Physics and Astronomy.
Core collapse supernovae are an important class of objects in stellar evolution research as they are the final life stage of high mass stars. Supernovae in general are classified into several spectral types; this paper explores SN 2005da, classified as a Type Ic, meaning it lacks hydrogen and helium lines. The supernova was originally classified as a broad-lined Type Ic (Type Ic-BL), with expansion velocities near maximum light greater than or approximately equal to 15000 km/s. However, some of the elements present in the spectrum, namely carbon and oxygen, have narrower lines (FWHM approximately equal to 2300 km/s) than other elements, indicating an interaction with a previously ejected envelope. The supernova is also found to have a decay time, with a change in magnitude over 15 days following maximum light of about 1.4 magnitudes, that is significantly faster than typical Type Ic or Ic-BL. This is more akin to a rarer object type known as a Type Ibn, although it lacks the characteristic narrow helium lines of this type. Therefore, SN 2005da appears to be unlike known examples of Type Ic supernovae.
Ryan Chornock (Advisor)
40 p.
Astronomy; Astrophysics; Physics
Supernova; Core-Collapse; Massive Stars; Shockwave Interaction; Light Curves; SN 2005da; SN 2006jc; UGC 11301; Type Ic; Type Ibn; Type Ic-BL; High-Energy; Astrophysics

Recommended Citations

Citations

  • Williamson, J. (2017). SN2005da: A Spectroscopic and Photometric Analysis of a Peculiar Type Ic Supernova [Undergraduate thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ouashonors1493239779235968

    APA Style (7th edition)

  • Williamson, Jacob. SN2005da: A Spectroscopic and Photometric Analysis of a Peculiar Type Ic Supernova. 2017. Ohio University, Undergraduate thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ouashonors1493239779235968.

    MLA Style (8th edition)

  • Williamson, Jacob. "SN2005da: A Spectroscopic and Photometric Analysis of a Peculiar Type Ic Supernova." Undergraduate thesis, Ohio University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ouashonors1493239779235968

    Chicago Manual of Style (17th edition)

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© 2017, all rights reserved.
This open access ETD is published by Ohio University Art and Sciences Honors Theses and OhioLINK.