Past Events

Apr 15, 2014 12:30 pm - Steven Silverberg

"Prospecting in Ultracool Dwarfs: Measuring the Metallicities of Mid- and Late-M Dwarfs," by Mann, et al.

Apr 08, 2014 12:30 pm - Paul Canton

The first introduces some semirecent observations of R Coronae Boreallis, the prototype of a class of luminous variables:  'The Circumstellar Environment of R Coronae Borealis: White Dwarf Merger or Final-helium-shell Flash?'

The second is a popular paper which addresses the question of where these stars may come from, and how they fit in the grand picture of stellar evolution: 'Very Large Excesses of 18O in Hydrogen-deficient Carbon and R Coronae Borealis Stars: Evidence for White Dwarf Mergers'

Apr 01, 2014 12:30 pm - Brian Friesen


Mar 25, 2014 12:30 pm - Rhiannon Griffin
Photometric studies of Abell 1664: The subtle effect a
minor merger has on cluster galaxies
Mar 11, 2014 12:30 pm - Erin Cooper

Line-driven Disk Winds in Active Galactic Nuclei: The Critical Importance of Ionization and Radiative Transfer
Mar 04, 2014 12:30 pm - Beth Stetzler, Alex Gianninas
"Producing type Iax supernovae from a specific class of helium-ignited WD explosions?"
"Detection of White Dwarf Companions to Blue Stragglers in the Open Cluster NGC 188: Direct Evidence for Recent Mass Transfer"
Gosnell et al. (2014), ApJ, 783, L8

Feb 25, 2014 12:30 pm - Evan Rich, Malia Jenks
“The Architecture of the LkCa 15 transitional disk revealed by high-contrast imaging”

Upper limits on the luminosity of the progenitor of type Ia supernova SN2014J
Feb 18, 2014 12:30 pm - Jeremy Lusk

Title: Mass-loss histories of Type IIn supernova progenitors
within decades before their explosion


Feb 11, 2014 12:30 pm - Jenna Nugent


Feb 04, 2014 12:30 pm - Adrian Lucy, Mi Dai
For my half of journal club on Tuesday, I'll be discussing my ALMA/EVLA/IRAM work on the Kleinmann-Low star-forming nebula, from my summer at NRAO, which I presented at AAS. I'll keep it self-contained, but if anyone's very eager to get a head start, a relevant reference that significantly overlaps with our work might be: Neill et al. 2013,
I will discuss this paper:
Systematic Uncertainties Associated with the Cosmological Analysis of the First Pan-STARRS1 Type Ia Supernova Sample (

Jan 28, 2014 12:30 pm - Tim Miller

The post-common-envelope, binary central star of the planetary nebula Hen 2-11

The Morpho-kinematics of Planetary Nebulae with Binary Central Stars

Jan 17, 2014 12:30 pm - Texas, AAS meeting participants

Disseminate Texas and AAS meeting results.

Dec 09, 2013 12:30 pm - Open
Dec 02, 2013 12:30 pm - Jamie Lomax, Mike Malatesta

‘The Rotation Rates of Massive Stars: The Role of Binary Interaction Through Tides, Mass Transfer, and Mergers’ by de Mink et al.

‘Commissing of the Dual-Beam Imaging Polarimeter for the UH 88-inch telescope’ (

Nov 25, 2013 12:30 pm - Claudia Belardi, Jenna Nugent

“Suzaku study of gas properties along filaments of A2744”

“Mars Encounters Cause Fresh Surfaces on Some Near-Earth Asteroids” by F. DeMeo.

Nov 18, 2013 12:30 pm - Kyra Dame

Hot bottom burning and s-process nucleosynthesis in massiveAGB stars at the beginning of the thermally-pulsing phase

Nov 11, 2013 12:30 pm - Beth Stetzler, Rhiannon Griffin

Probing the cosmic-ray content of galaxy clusters by stacking Fermi-LAT count maps by Huber et al.

On the Nearby Binary Brown Dwarf WISE J104915.57-531906.1 (Luhman 16)

Nov 04, 2013 12:30 pm - Tim Miller, Steven Silverberg

“Analysis of chemical abundances in planetary nebulae with [WC] central starsII. Chemical abundances and the abundance discrepancy factor”

Characterizing a Dramatic V ∼ 9 Flare on an Ultracool Dwarf Found by the ASAS-SN Survey

Oct 28, 2013 12:30 pm - John Wisniewski

APO Telescopes.

Oct 21, 2013 12:30 pm - Evan Rich, Sara Barber

Fluffy dust forms icy planetesimals by static compression, Kataoka et al.,

Evidence for Water in the Rocky Debris of a Disrupted Extrasolar Minor Planet, J. Farihi, B.T. Gansicke, D. Koester,

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