Erik M. Johansson

An Upper Mass Limit on a Red Supergiant Progenitor for the Type II-Plateau Supernova SN 2006my (2008)

Leonard, Douglas C., Gal-Yam, Avishay, Fox, Derek B., Cameron, P. B., Johansson, Erik M., Kraus, Adam L., ...

We analyze two pre-supernova (SN) and three post-SN high-resolution images of the site of the Type II-Plateau supernova SN 2006my in an effort to either detect the progenitor star or to constrain its...

An Upper Mass Limit on a Red Supergiant Progenitor for the Type II-Plateau Supernova SN 2006my (2008)

Leonard, Douglas C., Gal-Yam, Avishay, Fox, Derek B., Cameron, P. B., Johansson, Erik M., Kraus, Adam L., ...

We analyze two pre-supernova (SN) and three post-SN high-resolution images of the site of the Type II-Plateau supernova SN 2006my in an effort to either detect the progenitor star or to constrain its...

A low density of 0.8 g/cc for the Trojan binary asteroid 617 Patroclus (2006)

Marchis, Franck, Hestroffer, Daniel, Descamps, Pascal, Berthier, Jerome, Bouchez, Antonin H., Campbell, Randall D., ...

The Trojan population consists of two swarms of asteroids following the same orbit as Jupiter and located at the L4 and L5 Lagrange points of the Jupiter-Sun system (leading and following Jupiter by...