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by: Reina Conn DVM


Reina Conn DVM
GPA 3.54


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About this Document

Class Notes
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This 0 page Class Notes was uploaded by Reina Conn DVM on Sunday November 1, 2015. The Class Notes belongs to ASTR 500 at New Mexico State University taught by Staff in Fall. Since its upload, it has received 60 views. For similar materials see /class/233215/astr-500-new-mexico-state-university in Astronomy at New Mexico State University.


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Date Created: 11/01/15
Spectral Evolution of Type II Supernovae ASTR 500 Sept 5 2008 Maria T Patterson Type I vs Type II Supernovae SN 1987A Photospherio Phase P Cygni profiles HSTVWFPCZ Credit Peter Challis Nebular Phase emission lines UVIR spectrum overtime 53 a m c o o 3 an E quot 2 m I nu M Call 1 a in 1937 In I 1 week h 5 1987A n I 1 week 1 SN 19371 Is I 1 week a SN man lb I I l 5000 600 Rest Wavelength A Filippenko 1997 0 Typel Lack hydrogen lines White dwarf progenitors or core collapse of massive stars wo hydrogen Type II Hydrogen present Corecollapse of massive stars g1 A 5 Equot 9 x 3 4 I Amett SN 1987A 25 FEB i987 Blue supergiant 20 Msolarprogenitor w I4 APR 1537 H i Neutrino emission WW Direct evidence of FLquot a an Ni56 in supernova 09 SEP 1667 Inquot MW 4000 can 500 00 lUDOO WAVELENGTH 1 Bahcall Kirshner and Woosley 1989 Photospheric Phase SN l987A 25 FEB 1957 1 395 u n 3 E u ta 539 a L 9 v X D U 6000 8000 IOOOO WAVELENGTH A Forty hours after explosion P Cygni profiles comoving atmosphere P Cygni Profile LINE SHAPE AND PHOTOSPHERIC VELOCITY Lphot TOOOo X I 1 0 3 2 w 0 0 I I I 1000 500 0 50C 1900 dalia lambda Angstrom from rest wavclcngth Daniel Kasen supernovaIblgovdnkasentutorialpcygnipropertieshtml Photospheric Nebular Transition 5 n E U 03 9 g T Q X D m 6000 8000 WAVELENGTH A 50 days after explosion Emission and absorption lines 395 n quot39 E U 51 E u 9 9 V X D 1 u Nebular Phase 09 SEP I98 73C 36C Call Call 330 6324 0 Na K 4000 6000 6000 IOOOO WAVELENGTH A gt100 days after explosion Emission line dominated 9 Am quotLKr vw jylf V qutw V whl39 n39w vm Hymn a if WWWM k Circufmstellar gas W in 7 w wn39wmu x u 03 M as Wavelenth mm W N v le A 1 1w V39MN quotJWN N AUgNMVILI 7 n u My Mum v 4 5 6 7 a m wavelength pm a 260045 J m H w r NigtCo gt Fe Deca 2n j J y


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