Alicia Soderberg
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View article: MULTI-WAVELENGTH OBSERVATIONS OF SUPERNOVA 2011ei: TIME-DEPENDENT CLASSIFICATION OF TYPE IIb AND Ib SUPERNOVAE AND IMPLICATIONS FOR THEIR PROGENITORS
MULTI-WAVELENGTH OBSERVATIONS OF SUPERNOVA 2011ei: TIME-DEPENDENT CLASSIFICATION OF TYPE IIb AND Ib SUPERNOVAE AND IMPLICATIONS FOR THEIR PROGENITORS Open
We present X-ray, UV/optical, and radio observations of the stripped-envelope, core-collapse supernova (SN) 2011ei, one of the least luminous SNe IIb or Ib observed to date. Our observations begin ...
View article: SN 2009bb: A PECULIAR BROAD-LINED TYPE Ic SUPERNOVA,
SN 2009bb: A PECULIAR BROAD-LINED TYPE Ic SUPERNOVA, Open
Ultraviolet, optical, and near-infrared photometry and optical spectroscopy of the broad-lined Type Ic supernova (SN) 2009bb are presented, following the flux evolution from -10 to +285 days past B ...
View article: SN 2014C: VLBI images of a supernova interacting with a circumstellar shell
SN 2014C: VLBI images of a supernova interacting with a circumstellar shell Open
We report on VLBI measurements of supernova 2014C at several epochs between $t = 384$ and 1057 days after the explosion. SN 2014C was an unusual supernova that initially had Type Ib optical spectrum, but after $t = 130$ d it developed a Ty…
View article: The nearby Type Ibn supernova 2015G: signatures of asymmetry and progenitor constraints
The nearby Type Ibn supernova 2015G: signatures of asymmetry and progenitor constraints Open
We present the results of an extensive observational campaign on the nearby Type Ibn SN 2015G, including data from radio through ultravioletwavelengths. SN2015Gwas asymmetric, showing late-time nebular lines redshifted by similar to 1000 k…
View article: A Reverse Shock in GRB 160509A
A Reverse Shock in GRB 160509A Open
We present the second multi-frequency radio detection of a reverse shock in a $γ$-ray burst. By combining our extensive radio observations of the Fermi-LAT GRB 160509A at $z = 1.17$ up to $20$ days after the burst with Swift X-ray observat…
View article: METAMORPHOSIS OF SN 2014C: DELAYED INTERACTION BETWEEN A HYDROGEN POOR CORE-COLLAPSE SUPERNOVA AND A NEARBY CIRCUMSTELLAR SHELL
METAMORPHOSIS OF SN 2014C: DELAYED INTERACTION BETWEEN A HYDROGEN POOR CORE-COLLAPSE SUPERNOVA AND A NEARBY CIRCUMSTELLAR SHELL Open
We present optical observations of supernova SN 2014C, which underwent an unprecedented slow metamorphosis from H-poor type Ib to H-rich type IIn over the course of one year. The observed spectroscopic evolution is consistent with the supe…
View article: X-RAY AND RADIO EMISSION FROM TYPE IIn SUPERNOVA SN 2010jl
X-RAY AND RADIO EMISSION FROM TYPE IIn SUPERNOVA SN 2010jl Open
We present all X-ray and radio observations of the Type IIn supernova SN 2010jl. The X-ray observations cover a period up to day 1500 with Chandra, XMM-Newton, NuSTAR, and Swift-X-ray Telescope (XRT). The Chandra observations after 2012 Ju…
View article: A NEW MODEL FOR THE RADIO EMISSION FROM SN 1994I AND AN ASSOCIATED SEARCH FOR RADIO TRANSIENTS IN M51
A NEW MODEL FOR THE RADIO EMISSION FROM SN 1994I AND AN ASSOCIATED SEARCH FOR RADIO TRANSIENTS IN M51 Open
We revisit the exquisite archival radio data for the Type Ic supernova SN\n1994I and present a revised model for the SN radio emission and a pilot study\nthat aims to constrain the rate of C-band radio transients within the face-on\nhost g…
View article: Radio and X-rays From SN 2013df Enlighten Progenitors of Type IIb Supernovae
Radio and X-rays From SN 2013df Enlighten Progenitors of Type IIb Supernovae Open
We present radio and X-ray observations of the nearby Type IIb Supernova 2013df in NGC4414 from 10 to 250 days after the explosion. The radio emission showed a peculiar soft-to-hard spectral evolution. We present a model in which inverse C…
View article: TOWARD CHARACTERIZATION OF THE TYPE IIP SUPERNOVA PROGENITOR POPULATION: A STATISTICAL SAMPLE OF LIGHT CURVES FROM Pan-STARRS1
TOWARD CHARACTERIZATION OF THE TYPE IIP SUPERNOVA PROGENITOR POPULATION: A STATISTICAL SAMPLE OF LIGHT CURVES FROM Pan-STARRS1 Open
In recent years, wide-field sky surveys providing deep multiband imaging have presented a new path for indirectly characterizing the progenitor populations of core-collapse supernovae (SNe): systematic light curve studies. We assemble a se…