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M31 PAndromeda Cepheid sample observed in four HST bands
Mihael Kodric, Arno Riffeser, Stella Seitz +5
Using the M31 PAndromeda Cepheid sample and the HST PHAT data we obtain the largest Cepheid sample in M31 with HST data in four bands. For our analysis we consider three samples: A…
Cepheids in M31 - The PAndromeda Cepheid sample
Mihael Kodric, Arno Riffeser, Ulrich Hopp +15
We present the largest Cepheid sample in M31 based on the complete Pan-STARRS1 survey of Andromeda (PAndromeda) in the , and b…
The M31 Near-Infrared Period-Luminosity Relation and its non-linearity for Cep Variables with
Mihael Kodric, Arno Riffeser, Stella Seitz +7
We present the largest M31 near-infrared (F110W (close to J band), F160W (H band)) Cepheid sample so far. The sample consists of 371 Cepheids with photometry obtained from the HST…
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…
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…
VLT multi-epoch radial velocity survey toward NGC 6253. Analysis of three transiting planetary candidates
M. Montalto, S. Villanova, J. Koppenhoefer
We measured the radial velocity of 139 stars in the region of NGC 6253, discussing cluster's membership and binarity in this sample, complementing our analysis with photometric, pr…