Buscar
Mostrando ítems 31-40 de 163
Photometry of the Oort Cloud comet C/2009 P1 (Garradd): Pre-perihelion observations at 5.7 and 2.5 AU.
(Elsevier, 2016-02)
The aim of this paper is to contribute to the characterization of the general properties of the Long Period Comets (LPCs) family, and in particular to report on the dust environment of comet C/2009 P1 (Garradd).The comet ...
Irradiation of nitrogen-rich ices by swift heavy ions: clues for the formation of ultracarbonaceous micrometeorites
(2015)
Context. Extraterrestrial materials, such as meteorites and interplanetary dust particles, provide constraints on the formation and evolution of organic matter in the young solar system. Micrometeorites represent the ...
The evolution of a Pluto-like system during the migration of the ice giants
(Elsevier B.V., 2015-01-15)
The planetary migration of the Solar System giant planets in the framework of the Nice model (Tsiganis, K., Games, R., Morbidelli, A., Levison, H.F. [2005]. Nature 435,459-461; Morbidelli, A., Levison, H.F., Tsiganis, K., ...
From the Fire: A Deeper Look at the Phoenix Stream
(2022-02-01)
We use 6 yr of data from the Dark Energy Survey to perform a detailed photometric characterization of the Phoenix stellar stream, a 15° long, thin, dynamically cold, low-metallicity stellar system in the Southern Hemisphere. ...
Kinematic and chemical study of planetary nebulae and H (II) regions in NGC 3109
(EDP Sciences, 2017-05)
Aims. We present high-resolution spectroscopy of a number of planetary nebulae (PNe) and H II regions distributed along the dwarf irregular galaxy NGC3109 and compare their kinematical behavior with that of H I data. We ...
Space weathering and the color–color diagram of Plutinos and Jupiter Trojans
(Elsevier Inc, 2015-03)
The Jupiter Trojan asteroids and the Plutinos are two peculiar populations. They are dynamically resonant, therefore with heliocentric distances relatively bounded for long timescales, as a farely general rule. As a ...
Breaking the curtain: the old open cluster VdB-Hagen 67 in the background of the Vela Molecular Ridge
(2010)
We present optical and infrared photometry for VdB-Hagen 67, an overlooked old open cluster
located at l = 273.◦76, b = −0.◦375 (RA 09h26m45s, Dec.−51◦16 00 , J2000.0) in the fourth
Galactic quadrant, in the direction ...
Ruprecht 1: a small, moderately young open cluster in the third galactic quadrant
(Inst Theoretical Physics Astronomy, 2008-12)
We present CCD observations in the Washington system C and T1 passbands down to T1 ∼ 18.5 in the field of Ruprecht 1, a poorly studied open cluster located in the third Galactic quadrant. We measured T1 magnitudes and C − ...
Evidence for nonlinear development of magnetohydrodynamic scale intermittency in the inner heliosphere
(IOP Publishing, 2012-04)
The formation of coherent structures in turbulence is a signature of a developing cascade and therefore might be observable by analyzing inner heliospheric solar wind turbulence. To test this idea, data from the Helios 2 ...