Hubble Space Telescope/NICMOS Near‐Infrared Imaging of the Proto–Planetary Nebula OH 231.8+4.2

2003 ◽  
Vol 585 (1) ◽  
pp. 482-493 ◽  
Author(s):  
C. A. Meakin ◽  
J. H. Bieging ◽  
W. B. Latter ◽  
J. L. Hora ◽  
A. G. G. M. Tielens
Keyword(s):  
Planetary Nebula ◽  
Near Infrared ◽  
Infrared Imaging ◽  
Hubble Space Telescope ◽  
Near Infrared Imaging ◽  
Space Telescope

scholarly journals The host galaxies and explosion sites of long-duration gamma ray bursts: Hubble Space Telescope near-infrared imaging

2017 ◽  
pp. stx220 ◽  
Author(s):  
J. D. Lyman ◽  
A. J. Levan ◽  
N. R. Tanvir ◽  
J. P. U. Fynbo ◽  
J. T. W. McGuire ◽  
...  
Keyword(s):  
Near Infrared ◽  
Gamma Ray ◽  
Infrared Imaging ◽  
Hubble Space Telescope ◽  
Gamma Ray Bursts ◽  
Host Galaxies ◽  
Near Infrared Imaging ◽  
Space Telescope ◽  
Long Duration

scholarly journals NEAR-INFRARED IMAGING OF A z = 6.42 QUASAR HOST GALAXY WITH THE HUBBLE SPACE TELESCOPE WIDE FIELD CAMERA 3

2012 ◽  
Vol 756 (2) ◽  
pp. L38 ◽  
Author(s):  
M. Mechtley ◽  
R. A. Windhorst ◽  
R. E. Ryan ◽  
G. Schneider ◽  
S. H. Cohen ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Imaging ◽  
Hubble Space Telescope ◽  
Host Galaxy ◽  
Wide Field ◽  
Near Infrared Imaging ◽  
Space Telescope

scholarly journals The near-infrared polarization of the pre-planetary nebula Frosty Leo

2020 ◽  
Vol 495 (3) ◽  
pp. 2599-2606
Author(s):  
E O Serrano Bernal ◽  
L Sabin ◽  
A Luna ◽  
R Devaraj ◽  
Y D Mayya ◽  
...  
Keyword(s):  
Multiple Scattering ◽  
Planetary Nebula ◽  
Near Infrared ◽  
Infrared Imaging ◽  
Asymptotic Giant Branch ◽  
Near Infrared Imaging ◽  
Bipolar Outflow ◽  
High Polarization ◽  
Polarimetric Study ◽  
K Band

ABSTRACT We present a near-infrared imaging polarimetric study of the pre-planetary nebula: Frosty Leo. The observations were carried out in J, H, and K′ bands using the new polarimeter POLICAN mounted on the 2.1-m telescope of the Guillermo Haro Astrophysical Observatory, Sonora, Mexico. The most prominent result observed in the polarization maps is a large and well-defined dusty envelope (35 arcsec diameter in H band). The polarization position angles in the envelope are particularly well ordered and nearly parallel to the equator of the nebula (seen in J and H bands). The nebula presents a known bipolar outflow and the envelope completely wraps around it. Within the bipolar lobes, we find high polarization levels ranging from $60{{\ \rm per\ cent}}$ (J band) to $90{{\ \rm per\ cent}}$ (K′ band) and the polarization angles trace a centrosymmetric pattern. We found the remnants of superwind shells at the edges of the bipolar lobes and the duration of this phase is around 600 yr. The origin of polarization features in the nebula is most likely due to a combination of single and multiple scattering. Our results clearly demonstrate new structures that provide new hints on the evolution of Frosty Leo from its previous asymptotic giant branch phase.

scholarly journals Search for giant planets around seven white dwarfs in the Hyades cluster with the Hubble Space Telescope

2020 ◽  
Vol 500 (3) ◽  
pp. 3920-3925
Author(s):  
Wolfgang Brandner ◽  
Hans Zinnecker ◽  
Taisiya Kopytova
Keyword(s):  
White Dwarfs ◽  
Near Infrared ◽  
Hubble Space Telescope ◽  
Infrared Camera ◽  
Detection Limits ◽  
Giant Planets ◽  
High Angular Resolution ◽  
Mass Detection ◽  
Space Telescope ◽  
Hyades Cluster

ABSTRACT Only a small number of exoplanets have been identified in stellar cluster environments. We initiated a high angular resolution direct imaging search using the Hubble Space Telescope (HST) and its Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) instrument for self-luminous giant planets in orbit around seven white dwarfs in the 625 Myr old nearby (≈45 pc) Hyades cluster. The observations were obtained with Near-Infrared Camera 1 (NIC1) in the F110W and F160W filters, and encompass two HST roll angles to facilitate angular differential imaging. The difference images were searched for companion candidates, and radially averaged contrast curves were computed. Though we achieve the lowest mass detection limits yet for angular separations ≥0.5 arcsec, no planetary mass companion to any of the seven white dwarfs, whose initial main-sequence masses were >2.8 M⊙, was found. Comparison with evolutionary models yields detection limits of ≈5–7 Jupiter masses (MJup) according to one model, and between 9 and ≈12 MJup according to another model, at physical separations corresponding to initial semimajor axis of ≥5–8 au (i.e. before the mass-loss events associated with the red and asymptotic giant branch phase of the host star). The study provides further evidence that initially dense cluster environments, which included O- and B-type stars, might not be highly conducive to the formation of massive circumstellar discs, and their transformation into giant planets (with m ≥ 6 MJup and a ≥6 au). This is in agreement with radial velocity surveys for exoplanets around G- and K-type giants, which did not find any planets around stars more massive than ≈3 M⊙.

Near-Infrared Imaging Photoplethysmography During Driving

2020 ◽  
pp. 1-12
Author(s):  
Ewa M. Nowara ◽  
Tim K. Marks ◽  
Hassan Mansour ◽  
Ashok Veeraraghavan
Keyword(s):  
Near Infrared ◽  
Infrared Imaging ◽  
Near Infrared Imaging

Highly Sensitive Near-Infrared Imaging of Peroxynitrite Fluxes in Inflammation Progress

2021 ◽  
Vol 93 (5) ◽  
pp. 3035-3041
Author(s):  
Zhao Wang ◽  
Weiwei Wang ◽  
Pengzhan Wang ◽  
Xinjian Song ◽  
Zhiqiang Mao ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Imaging ◽  
Near Infrared Imaging ◽  
Highly Sensitive

The Targeting Behavior of Folate-Nanohydrogel Evaluated by Near Infrared Imaging System in Tumor-Bearing Mouse Model

2009 ◽  
Vol 27 (1) ◽  
pp. 46-55 ◽  
Author(s):  
Jian Zhang ◽  
Dawei Deng ◽  
Zhiyu Qian ◽  
Fei Liu ◽  
Xinyang Chen ◽  
...  
Keyword(s):  
Mouse Model ◽  
Near Infrared ◽  
Infrared Imaging ◽  
Imaging System ◽  
Tumor Bearing Mouse ◽  
Near Infrared Imaging ◽  
Tumor Bearing ◽  
Infrared Imaging System
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