119 citations · 671 across the 13 of their papers we have counts for
14 papers
Decadal pre-explosion activity and circumstellar interaction in a supernova
Ting-Wan Chen, Amar Aryan, Sheng Yang +52
When a massive star explodes as a supernova, crucial information about its immediate environment is lost within hours. Here we report rapid optical observations from Lulin Observat…
M33 Cepheids from CFHT/MegaCAM survey
Samuel Adair, Chien-Hsiu Lee
In this paper we analyze Sloan g,r,i archival imaging data of M33 taken by Hartman et al. (2006) using Megacam at the Canada-France-Hawaii Telescope. To determine the distance to t…
Properties of M31. V: 298 Eclipsing Binaries from PAndromeda
C. -H. Lee, J. Koppenhoefer, S. Seitz +12
The goal of this work is to conduct a photometric study of eclipsing binaries in M31. We apply a modified box-fitting algorithm to search for eclipsing binary candidates and determ…
Detection of an outburst one year prior to the explosion of SN 2011ht
M. Fraser, M. Magee, R. Kotak +18
Using imaging from the Pan-STARRS1 survey, we identify a precursor outburst at epochs 287 and 170 days prior to the reported explosion of the purported Type IIn supernova (SN) 2011…
Weak lensing analysis of SZ-selected clusters of galaxies from the SPT and Planck surveys
D. Gruen, S. Seitz, F. Brimioulle +8
We present the weak lensing analysis of the Wide-Field Imager SZ Cluster of galaxy (WISCy) sample, a set of 12 clusters of galaxies selected for their Sunyaev-Zel'dovich (SZ) effec…
A hot Jupiter transiting a mid-K dwarf found in the pre-OmegaCam Transit Survey
J. Koppenhoefer, R. P. Saglia, L. Fossati +13
We describe the pre-OmegaTranS project, a deep survey for transiting extra-solar planets in the Carina region of the Galactic Disk. In 2006-2008 we observed a single dense stellar…
Properties of M31. III: Candidate Beat Cepheids from PS1 PAndromeda Data and Their Implication on Metallicity Gradient
C. -H. Lee, M. Kodric, S. Seitz +15
We present a sample of M31 beat Cepheids from the Pan-STARRS 1 PAndromeda campaign. By analyzing three years of PAndromeda data, we identify seventeen beat Cepheids, spreading from…
The Influence of Dark Matter Halos on Dynamical Estimates of Black Hole Mass: Ten New Measurements for High-sigma Early-Type Galaxies
S. P. Rusli, J. Thomas, R. P. Saglia +7
Adaptive-Optics assisted SINFONI observations of the central regions of ten early-type galaxies are presented. Based primarily on the SINFONI kinematics, ten black hole masses occu…
Weak lensing analysis of RXC J2248.7-4431
D. Gruen, F. Brimioulle, S. Seitz +8
We present a weak lensing analysis of the cluster of galaxies RXC J2248.7-4431, a massive system at z=0.3475 with prominent strong lensing features covered by the HST/CLASH survey…
The Wendelstein Calar Alto Pixellensing Project (WeCAPP): the M31 Nova catalogue
C. -H. Lee, A. Riffeser, S. Seitz +6
We present light curves from the novae detected in the long-term, M31 monitoring WeCAPP project. The goal of WeCAPP is to constrain the compact dark matter fraction of the M31 halo…
PAndromeda - first results from the high-cadence monitoring of M31 with Pan-STARRS 1
C. -H. Lee, A. Riffeser, J. Koppenhoefer +19
The Pan-STARRS 1 (PS1) survey of M31 (PAndromeda) is designed to identify gravitational microlensing events, caused by bulge and disk stars (self-lensing) and by compact matter in…
Finite-source and finite-lens effects in astrometric microlensing
C. -H. Lee, S. Seitz, A. Riffeser +1
The aim of this paper is to study the astrometric trajectory of microlensing events with an extended lens and/or source. We consider not only a dark lens but also a luminous lens a…
The old and heavy bulge of M31 I. Kinematics and stellar populations
R. P. Saglia, M. Fabricius, R. Bender +7
We present new optical long-slit data along 6 position angles of the bulge region of M31. We derive accurate stellar and gas kinematics reaching 5 arcmin from the center, where the…
Dust properties in M31.I.Basic properties and a discussion on age-dependent dust heating
M. Montalto, S. Seitz, A. Riffeser +3
Context. Spitzer Space Telescope observations and dust emission models are used to discuss the distribution of dust and its characteristics in M31. Together with GALEX FUV, NUV, an…