scholarly journals Near‐Ultraviolet to Near‐Infrared Spectral Properties of Hollows on Mercury: Implications for Origin and Formation Process

2020 ◽  
Vol 125 (12) ◽  
Author(s):  
O. Barraud ◽  
A. Doressoundiram ◽  
S. Besse ◽  
J. M. Sunshine
Keyword(s):  
Formation Process ◽  
Spectral Properties ◽  
Near Infrared ◽  
Near Ultraviolet ◽  
Infrared Spectral

Microwave, Visible and near Infrared Spectral Properties as a Function of Water Content in Organic Soils

1998 ◽  
Vol 24 (1) ◽  
pp. 9-16 ◽  
Author(s):  
Q.P. Xu ◽  
J.B. Boisvert ◽  
I. Rubinstein ◽  
C. Hersom ◽  
N. Tremblay ◽  
...  
Keyword(s):  
Water Content ◽  
Spectral Properties ◽  
Near Infrared ◽  
Organic Soils ◽  
Infrared Spectral

Martian Aerosols: Near-Infrared Spectral Properties and Effects on the Observation of the Surface

Icarus ◽  
1994 ◽  
Vol 111 (2) ◽  
pp. 317-337 ◽  
Author(s):  
Stéphane Erard ◽  
John Mustard ◽  
Scott Murchie ◽  
Jean-Pierre Bibring ◽  
Priscilla Cerroni ◽  
...  
Keyword(s):  
Spectral Properties ◽  
Near Infrared ◽  
Infrared Spectral

PHOTOCONDUCTION AND SEMICONDUCTION IN MONOCRYSTALS OF THE CHARGE-TRANSFER COMPLEX, PERYLENE–FLUORANIL

1964 ◽  
Vol 42 (5) ◽  
pp. 1084-1087 ◽  
Author(s):  
H. KOKADO ◽  
K. Hasegawaj ◽  
W. G. Schneider
Keyword(s):  
Charge Transfer ◽  
Temperature Dependence ◽  
Single Crystals ◽  
Near Infrared ◽  
Charge Transfer Complex ◽  
Crystallographic Axis ◽  
Carrier Generation ◽  
Near Ultraviolet ◽  
Infrared Spectral ◽  
Apparent Activation Energies

Single crystals of the perylene–fluoranil charge-transfer complex were found to be photoconductive throughout the near ultraviolet, visible, and near infrared spectral regions. The temperature dependence of the semiconduction and photoconduction are characterized by apparent activation energies of 0.73 ev and 0.12 ev, respectively. Conductivity parallel to the c-crystallographic axis (along which the complex units are stacked in columns) was found to be about threefold greater than that in the perpendicular direction. Attempts to measure carrier mobilities proved unsuccessful. The results suggest extrinsic carrier generation accompanied by pronounced carrier trapping processes.

scholarly journals THE NUCLEAR NEAR-INFRARED SPECTRAL PROPERTIES OF NEARBY GALAXIES

2015 ◽  
Vol 217 (1) ◽  
pp. 13 ◽  
Author(s):  
R. E. Mason ◽  
A. Rodríguez-Ardila ◽  
L. Martins ◽  
R. Riffel ◽  
O. González Martín ◽  
...  
Keyword(s):  
Spectral Properties ◽  
Near Infrared ◽  
Infrared Spectral ◽  
Nearby Galaxies

A comparison of the ultraviolet to near-infrared spectral properties of Mercury and the Moon as observed by MESSENGER

Icarus ◽  
2010 ◽  
Vol 209 (1) ◽  
pp. 179-194 ◽  
Author(s):  
Gregory M. Holsclaw ◽  
William E. McClintock ◽  
Deborah L. Domingue ◽  
Noam R. Izenberg ◽  
David T. Blewett ◽  
...  
Keyword(s):  
Spectral Properties ◽  
Near Infrared ◽  
The Moon ◽  
Infrared Spectral

scholarly journals (16) Psyche: A mesosiderite-like asteroid?

2018 ◽  
Vol 619 ◽  
pp. L3 ◽  
Author(s):  
M. Viikinkoski ◽  
P. Vernazza ◽  
J. Hanuš ◽  
H. Le Coroller ◽  
K. Tazhenova ◽  
...  
Keyword(s):  
Spectral Properties ◽  
Near Infrared ◽  
Bulk Composition ◽  
Three Dimensional ◽  
Parent Body ◽  
High Angular Resolution ◽  
Iron Meteorites ◽  
Sigma Level ◽  
Infrared Spectral ◽  
Initial Hypothesis

Context. Asteroid (16) Psyche is the target of the NASA Psyche mission. It is considered one of the few main-belt bodies that could be an exposed proto-planetary metallic core and that would thus be related to iron meteorites. Such an association is however challenged by both its near- and mid-infrared spectral properties and the reported estimates of its density. Aims. Here, we aim to refine the density of (16) Psyche to set further constraints on its bulk composition and determine its potential meteoritic analog. Methods. We observed (16) Psyche with ESO VLT/SPHERE/ZIMPOL as part of our large program (ID 199.C-0074). We used the high angular resolution of these observations to refine Psyche’s three-dimensional (3D) shape model and subsequently its density when combined with the most recent mass estimates. In addition, we searched for potential companions around the asteroid. Results. We derived a bulk density of 3.99 ± 0.26 g cm−3 for Psyche. While such density is incompatible at the 3-sigma level with any iron meteorites (∼7.8 g cm−3), it appears fully consistent with that of stony-iron meteorites such as mesosiderites (density ∼4.25 g cm−3). In addition, we found no satellite in our images and set an upper limit on the diameter of any non-detected satellite of 1460 ± 200 m at 150 km from Psyche (0.2% × RHill, the Hill radius) and 800 ± 200 m at 2000 km (3% × RHill). Conclusions. Considering that the visible and near-infrared spectral properties of mesosiderites are similar to those of Psyche, there is merit to a long-published initial hypothesis that Psyche could be a plausible candidate parent body for mesosiderites.

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