Publications (16)
YETI observations of the young transiting planet candidate CVSO 30 b
St. Raetz, T. O. B. Schmidt, S. Czesla +32
CVSO 30 is a unique young low-mass system, because, for the first time, a close-in transiting and a wide directly imaged planet candidates are found around a common host star. The…
A detailed X-ray investigation of PSR J2021+4026 and -Cygni supernova remnant
C. Y. Hui, K. A. Seo, L. C. C. Lin +9
We have investigated the field around the radio-quiet -ray pulsar, PSR J2021+4026, with a ~140 ks XMM-Newton observation and a ~56 ks archival Chandra data. Through analyzing t…
A search for counterparts of gamma-ray pulsars detected by the FERMI Large Area Telescope
L. Trepl, C. Y. Hui
This paper has been withdrawn.
A Possible Detection of Occultation by a Proto-planetary Clump in GM Cephei
The YETI Collaboration, W. P. Chen, S. C. -L. Hu +41
GM Cep in the young (~4 Myr) open cluster Trumpler 37 has been known to be an abrupt variable and to have a circumstellar disk with very active accretion. Our monitoring observatio…
WASP-14 b: Transit Timing analysis of 19 light curves
St. Raetz, G. Maciejewski, M. Seeliger +11
Although WASP-14 b is one of the most massive and densest exoplanets on a tight and eccentric orbit, it has never been a target of photometric follow-up monitoring or dedicated obs…
Investigation of a transiting planet candidate in Trumpler 37: an astrophysical false positive eclipsing spectroscopic binary star
R. Errmann, G. Torres, T. O. B. Schmidt +50
We report our investigation of the first transiting planet candidate from the YETI project in the young (~4 Myr old) open cluster Trumpler 37. The transit-like signal detected in t…
Multiwavelength properties of a new Geminga-like pulsar: PSR J2021+4026
L. Trepl, C. Y. Hui, K. S. Cheng +4
In this paper, we report a detailed investigation of the multiwavelength properties of a newly detected gamma-ray pulsar, PSR J2021+4026, in both observational and theoretical aspe…
Identification campaign of supernova remnant candidates in the Milky Way. II. X-ray studies of G38.7-1.4
R. H. H. Huang, J. H. K. Wu, C. Y. Hui +3
We report on XMM-Newton and Chandra observations of the Galactic supernova remnant candidate G38.7-1.4, together with complementary radio, infrared, and gamma-ray data. An approxim…
A new flare star member candidate in the Pleiades cluster
M. Moualla, T. O. B. Schmidt, R. Neuhäuser +19
We present a new flare star, which was discovered during our survey on a selected field at the edge of the Pleiades cluster. The field was observed in the period 2007 - 2010 with t…
Identification campaign of supernova remnant candidates in the Milky Way - I: Chandra observation of G308.3-1.4
C. Y. Hui, K. A. Seo, R. H. H. Huang +5
ROSAT all-sky survey (RASS) data have provided another window to search for supernova remnants (SNRs). In reexamining this data archive, a list of unidentified extended X-ray objec…
Young Exoplanet Transit Initiative (YETI)
R. Neuhäuser, R. Errmann, A. Berndt +80
We present the Young Exoplanet Transit Initiative (YETI), in which we use several 0.2 to 2.6m telescopes around the world to monitor continuously young (< 100 Myr), nearby (< 1 kpc…
Discovery of X-ray Pulsation from the Geminga-like Pulsar PSR J2021+4026
L. C. C. Lin, C. Y. Hui, C. P. Hu +8
We report the discovery of X-ray periodicity of ~265.3 ms from a deep XMM-Newton observation of the radio-quiet gamma-ray pulsar, PSR J2021+4026, located at the edge of the superno…
XMM-Newton observation of PSR B2224+65 and its jet
C. Y. Hui, R. H. H. Huang, L. Trepl +4
We have investigated the pulsar PSR B2224+65 and its X-ray jet with XMM-Newton. Apart from the long X-ray jet which is almost perpendicular to the direction of proper motion, a put…
X-ray properties of G308.3-1.4 and its central compact object
K. A. Seo, C. Y. Hui, R. H. H. Huang +4
We present a short Chandra observation that confirms a previous unidentified extended X-ray source, G308.3-1.4, as a new supernova remnant (SNR) in the Milky Way. Apart from identi…
Towards the Rosetta Stone of planet formation
G. Maciejewski, R. Neuhaeuser, R. Errmann +18
Transiting exoplanets (TEPs) observed just about 10 Myrs after formation of their host systems may serve as the Rosetta Stone for planet formation theories. They would give strong…
Is there a compact companion orbiting the late O-type binary star HD 164816?
L. Trepl, V. V. Hambaryan, T. Pribulla +7
We present a multi-wavelength (X-ray, -ray, optical and radio) study of HD 194816, a late O-type X-ray detected spectroscopic binary. X-ray spectra are analyzed and the X-ray p…