S. Carpano
A5091400528- Stellar, planetary, and galactic studies
- Astrophysical Phenomena and Observations
- Astronomy and Astrophysical Research
- Astro and Planetary Science
- Astrophysics and Star Formation Studies
- Pulsars and Gravitational Waves Research
- Astronomical Observations and Instrumentation
- Gamma-ray bursts and supernovae
- Mechanics and Biomechanics Studies
- Galaxies: Formation, Evolution, Phenomena
- Astrophysics and Cosmic Phenomena
- Adaptive optics and wavefront sensing
- High-pressure geophysics and materials
- Geophysics and Gravity Measurements
- Solar and Space Plasma Dynamics
- Particle Detector Development and Performance
- Calibration and Measurement Techniques
- Astronomical and nuclear sciences
- Scientific Measurement and Uncertainty Evaluation
- Satellite Image Processing and Photogrammetry
- X-ray Spectroscopy and Fluorescence Analysis
- Radiomics and Machine Learning in Medical Imaging
- Statistical and numerical algorithms
- Scientific Computing and Data Management
- Electron and X-Ray Spectroscopy Techniques
Max Planck Institute for Extraterrestrial Physics
2015-2022
Max Planck Society
2015-2021
European Space Research and Technology Centre
2002-2014
European Space Astronomy Centre
2006-2010
University of Tübingen
2003-2006
<i>Aims. <i/>We report the discovery of very shallow (), periodic dips in light curve an active G9V star observed by CoRoT satellite, which we interpret as caused a transiting companion. We describe 3-colour data and complementary ground-based observations that support planetary nature companion.<i>Methods. used colours information, good angular resolution photometric in- out- transit, adaptive optics imaging, near-infrared spectroscopy, preliminary results from radial velocity measurements,...
The supernova impostor SN 2010da located in the nearby galaxy NGC 300, later identified as a likely supergiant B[e] high-mass X-ray binary, was simultaneously observed by NuSTAR and XMM-Newton between 2016 December 16 20, over total time span of 310 ks. We report discovery strong periodic modulation flux with pulse period 31.6 s very rapid spin-up, confirm therefore that compact object is neutron star. find spin changing from 31.71 to 31.54 period, spin-up rate -5.56 x 10-7 s-1, largest ever...
IC 10 X-1 is a bright (Lx=10^38 ergs/s) variable X-ray source in the local group starburst galaxy 10. The most plausible optical counterpart luminous Wolf-Rayet star, making rare example of binary. In this paper, we report on detection an orbital period for X-1of 34.4 hours. This result, combined with re-examination spectra, allow us to determine mass function system f(m)=7.8 Msun and probable compact object 24-36 Msun. If analysis correct, massive known stellar black hole. We further show...
<i>Context. <i/>The space telescope CoRoT searches for transiting extrasolar planets by continuously monitoring the optical flux of thousands stars in several fields view.<i>Aims. <i/>We report discovery CoRoT-10b, a giant planet on highly eccentric orbit (<i>e<i/> = 0.53 <i>±<i/> 0.04) revolving 13.24 days around faint (<i>V<i/> 15.22) metal-rich K1V star.<i>Methods. used photometry, radial velocity observations taken with <i>HARPS<i/> spectrograph, and <i>UVES<i/> spectra parent star to...
Context. The CoRoT satellite searches for planets by applying the transit method, monitoring up to 12 000 stars in galactic plane 150 days each observation run. This search is contaminated a large fraction of false positives, caused different binary configurations that might be confused with transiting planet. Aims. We evaluate rates and nature positives exoplanets compare our results semiempirical predictions. Methods. consider detected planet candidates first three extended runs, classify...
We present VLT/FORS2 time-series spectroscopy of the Wolf-Rayet star #41 in Sculptor group galaxy NGC 300. confirm a physical association with 300 X-1, since radial velocity variations HeII 4686 line indicate an orbital period 32.3 +/- 0.2 hr which agrees at 2 sigma level X-ray from Carpano et al. measure semi-amplitude 267 8 km/s, mass function 2.6 0.3 Msun is obtained. A revised spectroscopic for WN-type companion 26+7-5 yields black hole 20 4 preferred inclination 60-75 deg. If WR...
We report the detection of a rare transiting brown dwarf with mass 59 MJup and radius 1.1 RJup around metal-rich, [Fe/H] = +0.44, G9V star CoRoT-33. The orbit is eccentric (e 0.07) period 5.82 d. companion, CoRoT-33b, thus new member in so-called desert. orbital within 3% to 3:2 resonance rotational star. CoRoT-33b may be an important test case for tidal evolution studies. true frequency dwarfs close their host stars (P< 10 d) estimated approximately 0.2% which about six times smaller than...
The CoRoT exoplanet science team announces the discovery of CoRoT-11b, a fairly massive hot-Jupiter transiting V=12.9 mag F6 dwarf star (M*=1.27 +/- 0.05 Msun, R*=1.37 0.03 Rsun, Teff=6440 120 K), with an orbital period P=2.994329 0.000011 days and semi-major axis a=0.0436 0.005 AU. detection part radial velocity anomaly caused by Rossiter-McLaughlin effect shows that transit-like events detected are planet-sized object in prograde orbit. relatively high projected rotational (vsini=40+/-5...
We report the discovery of CoRoT-8b, a dense small Saturn-class exoplanet that orbits K1 dwarf in 6.2 days, and we derive its orbital parameters, mass, radius. analyzed two complementary data sets: photometric transit curve CoRoT-8b as measured by CoRoT radial velocity CoRoT-8 HARPS spectrometer. find is on circular orbit with semi-major axis 0.063 +/- 0.001 AU. It has radius 0.57 0.02 RJ, mass 0.22 0.03 MJ, therefore mean density 1.6 0.1 g/cm^3. With 67 % size Saturn 72 comparable to...
The CoRoT satellite exoplanetary team announces its sixth transiting planet in this paper. We describe and discuss the observations as well complementary ground-based - photometric spectroscopic carried out to assess planetary nature of object determine specific physical parameters. discovery reported here is a `hot Jupiter' an 8.9d orbit, 18 stellar radii, or 0.08 AU, away from primary star, which solar-type star (F9V) with estimated age 3.0 Gyr. mass close 3 times that Jupiter. has...
Context. CoRoT is a pioneering space mission whose primary goals are stellar seismology and extrasolar planets search. Its surveys of large fields generate numerous planetary candidates lightcurves have transit-like features. An extensive analytical observational follow-up effort undertaken to classify these candidates.
We report the discovery by CoRoT space mission of a new giant planet, CoRoT-20b. The planet has mass 4.24 ± 0.23 MJup and radius 0.84 0.04 RJup. With mean density 8.87 1.10 g cm-3, it is among most compact planets known so far. Evolutionary models for suggest heavy elements order 800 M⊕ if embedded in central core, requiring revision either formation or both evolution structure models. note however that smaller amounts are expected more realistic which they mixed throughout envelope. orbits...
NGC 300 ULX1 is a newly identified ultra-luminous X-ray pulsar. The system associated with the supernova impostor SN 2010da that was later classified as possible supergiant Be binary. In this work we report on spin period evolution of neutron star based all currently available observations system. We argue luminosity has remained almost constant since 2010, at level above ten times Eddington limit. Moreover, find evidence evolved from ~126 s down to ~18 within about 4 years. explain...
<i>Aims. <i/>We present here the list of planetary transit candidates detected in first long run observed by CoRoT: LRc01, towards galactic center direction Aquila, which lasted from May to October 2007.<i>Methods. <i/>we analyzed 3719 (33%) sources chromatic bands and 7689 monochromatic band. Instrumental noise stellar variability were treated with several detrending tools, on subsequently search algorithms applied.<i>Results. <i/>Forty two classified as up now 26 cases have been solved....