Results 11 to 20 of about 64,604 (243)

Post conjunction detection of $\beta$ Pictoris b with VLT/SPHERE [PDF]

open access: yes, 2018
With an orbital distance comparable to that of Saturn in the solar system, \bpic b is the closest (semi-major axis $\simeq$\,9\,au) exoplanet that has been imaged to orbit a star.
Abe, L.   +105 more
core   +3 more sources

SN 2002lt and GRB 021211: a SN/GRB Connection at z = 1 [PDF]

open access: yes, 2003
We present spectroscopic and photometric observations of the afterglow of GRB 021211 and the discovery of its associated supernova, SN 2002lt. The spectrum shows a broad feature (FWHM = 150 A), around 3770 A (in the rest-frame of the GRB), which we ...
Antonelli, L. A.   +16 more
core   +1 more source

The GAPS programme with HARPS-N@TNG IV: A planetary system around XO-2S [PDF]

open access: yes, 2014
We performed an intensive radial velocity monitoring of XO-2S, the wide companion of the transiting planet-host XO-2N, using HARPS-N at TNG in the framework of the GAPS programme.
Affer, L.   +50 more
core   +2 more sources

Mining the XRT archive to probe the X-ray absorber structure in the AGN population [PDF]

open access: yes, 2014
One of the key ingredients of the Unified Model of Active Galactic Nuclei (AGN) is the presence of a torus-like optically thick medium composed by dust and gas around the putative supermassive black hole.
Andreon, S.   +8 more
core   +2 more sources

SN 2005cs in M51 I. The first month of evolution of a subluminous SN II plateau [PDF]

open access: yes, 2006
Early time optical observations of supernova (SN) 2005cs in the Whirlpool Galaxy (M51), are reported. Photometric data suggest that SN 2005cs is a moderately under-luminous Type II plateau supernova (SN IIP).
A. Harutyunyan   +79 more
core   +3 more sources

Neutral Iron Emission Lines From The Day-side Of KELT-9b -- The GAPS Programme With HARPS-N At TNG XX [PDF]

open access: yes, 2020
We present the first detection of atomic emission lines from the atmosphere of an exoplanet. We detect neutral iron lines from the day-side of KELT-9b (Teq $\sim$ 4, 000 K).
Affer, L.   +49 more
core   +4 more sources

Spectroscopy of the hot pulsating star Beta Cephei. Velocities and EWs from C,N,O and Si lines [PDF]

open access: yes, 2007
Frequencies in oscillating $\beta$ Cephei stars are usually inferred by means of radial velocities measured from the SiIII triplet 4552-4574 A. These lines, relatively insensitive to the variation of Teff through a pulsation cycle, show small equivalent ...
Busa', I.   +3 more
core   +1 more source

NIR Follow-Up of the VVDS 02hr Field [PDF]

open access: yes, 2006
We present a new K-band survey covering 623 arcmin$^2$ in the VVDS 0226-0430 deep field down to a limiting magnitude K$_{\rm{Vega}}$ $\leq$ 20.5. We use the spectroscopic sample extracted from this new K-band catalogue to assess the effectiveness of ...
Adami, C.   +48 more
core   +3 more sources

Exact Time: the First Scientific Application of Radiocommunications

open access: yesSubstantia, 2018
Marconi’s first experiment of signal transmission by means of Hertzian waves was carried out in 1895. In the following years, wireless telegraphy progressed steadily and worldwide efforts were made to exploit the potential offered by new technologies. In
Mario Calamia, Monica Gherardelli
doaj   +1 more source

Spatial and temporal distribution of vertical ground movements at Mt. Vesuvius in the period 1973-2009

open access: yesAnnals of Geophysics, 2013
Since the early ’70s vertical ground movements at Mount Vesuvius area have been investigated and monitored by the Osservatorio Vesuviano (Isti-tuto Nazionale di Geofisica Vulcanologia - Osservatorio Vesuviano since 2001).
Folco Pingue   +6 more
doaj   +1 more source

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