Results 21 to 30 of about 56,835 (159)

Optical and near-infrared observations of the GRB 970616 error box [PDF]

open access: yes, 1999
We report on near-infrared and optical observations of the GRB 970616 error box and of the X-ray sources discovered by ASCA and ROSAT in the region. No optical transient was found either within the IPN band or in the X-ray error boxes, similarly to other
Castro-Tirado, A. J.   +9 more
core   +2 more sources

Un observatoire parmi les lieux d’observation du ciel : le projet de l’Observatoire royal de Louis XIV au prisme de son nom

open access: yesCahiers d’histoire, 2017
Qu’est-ce qu’un observatoire ? Quels furent les premiers observatoires de l’histoire ? Dans cette étude, nous montrerons que le choix du nom « observatoire » pour l’Observatoire royal de Paris, fondé pour Louis XIV et pour l’Académie royale des sciences,
Dalia Deias
doaj   +1 more source

L’empire de l’astronome : Urbain Le Verrier, l’Ordre et le Pouvoir

open access: yesCahiers d’histoire, 2007
Comment le pouvoir politique autoritaire du Second Empire contribue-t-il à favoriser les transformations du fonctionnement d’institutions scientifiques et l’organisation des savoirs eux-mêmes ?
Fabien Locher
doaj   +1 more source

Les voyages organisés par ordre du roi à Versailles

open access: yesBulletin du Centre de Recherche du Château de Versailles, 2006
This conference will study the seventeenth- and eighteenth-century voyages financed by the French state with a view to acquiring new knowledge on the world outside Europe. This period witnessed radical changes in scientific exploration overseas.
Jan Vandersmissen
doaj   +1 more source

A 30m Large Program: The CO Line Atlas of the Whirlpool Galaxy Survey (CLAWS) [PDF]

open access: yesEPJ Web of Conferences, 2022
Robust knowledge of the distribution, amount, and physical/chemical state of the cold molecular (H2) gas is key to understanding galaxy evolution. With the help of multi-CO line observations, it is possible to study the molecular gas distribution and ...
den Brok Jakob, Bigiel Frank
doaj   +1 more source

Multiple Cyclotron Lines in the Spectrum of 4U 0115+63 [PDF]

open access: yes, 2000
We report phase resolved spectroscopy of the transient accreting pulsar, 4U0115+63. For the first time, more than two cylotron resonance scattering features are detected in the spectrum of an X-ray pulsar.
Coburn, W.   +7 more
core   +2 more sources

SMASH 1 : A VERY FAINT GLOBULAR CLUSTER DISRUPTING in the OUTER REACHES of the LMC? [PDF]

open access: yes, 2016
We present the discovery of a very faint stellar system, SMASH 1, that is potentially a satellite of the Large Magellanic Cloud. Found within the Survey of the Magellanic Stellar History (SMASH), SMASH 1 is a compact (rh=9.1-3.4+5.9pc) and very low ...
Belokurov V.   +27 more
core   +5 more sources

Voir Neptune au bout de sa plume

open access: yesArts et Savoirs, 2017
In 1846, Urbain Le Verrier discovered planet Neptune using nothing but algebraic methodology and would not even bother to try and empirically ascertain its existence.
Yohann Ringuedé
doaj   +1 more source

Reanalysis of the FEROS observations of HIP 11952 [PDF]

open access: yes, 2013
Aims. We reanalyze FEROS observations of the star HIP 11952 to reassess the existence of the proposed planetary system. Methods. The radial velocity of the spectra were measured by cross-correlating the observed spectrum with a synthetic template.
Caffau, E.   +9 more
core   +3 more sources

The GAPS Programme with HARPS-N@TNG VI: The Curious Case of TrES-4b [PDF]

open access: yes, 2015
We revisit the TrES-4 system parameters based on high-precision HARPS-N radial-velocity measurements and new photometric light curves. A combined spectroscopic and photometric analysis allows us to determine a spectroscopic orbit with an amplitude $K=51 ...
Affer, L.   +40 more
core   +15 more sources

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