scholarly journals Near-Infrared Imaging by a Schmidt Telescope

1994 ◽  
Vol 161 ◽  
pp. 89-90
Author(s):  
K. Yanagisawa ◽  
N. Itoh ◽  
T. Ichikawa ◽  
K. Tarusawa ◽  
M. Ueno
Keyword(s):  
Thermal Radiation ◽  
Near Infrared ◽  
Infrared Imaging ◽  
Image Resolution ◽  
Wide Field ◽  
Schmidt Telescope ◽  
Large Format ◽  
Array Camera ◽  
Field Imaging ◽  
Wide Field Imaging

We have carried out wide field imaging observations in the near-infrared (J, H and K′ band) with a large format array camera attached to the prime focus of the 105 cm Schmidt telescope at Kiso Observatory. The image resolution, limiting magnitudes and the effect of thermal radiation are discussed.

scholarly journals Near-Infrared Imaging with the 105 cm Kiso Schmidt

1995 ◽  
Vol 148 ◽  
pp. 48-51
Author(s):  
T. Ichikawa ◽  
K. Tarusawa ◽  
K. Yanagisawa ◽  
N. Itoh
Keyword(s):  
Thermal Radiation ◽  
Near Infrared ◽  
Infrared Imaging ◽  
Infrared Camera ◽  
Image Resolution ◽  
Schmidt Telescope ◽  
Near Infrared Imaging ◽  
Large Format ◽  
Nearby Galaxies ◽  
Array Camera

AbstractWe have carried out imaging observations in the near-infrared (J, H and K’ band) with a large format array camera attached to the prime focus of the 105 cm Schmidt telescope at Kiso Observatory. The image resolution, limiting magnitudes and effect of thermal radiation are presented, based on observations of nearby galaxies. Considering the results, we are constructing a new larger near-infrared camera optimized for use with the Kiso Schmidt.

scholarly journals Wide-Field Imaging of Nearby Galaxies in Near-Infrared Bands

1994 ◽  
Vol 161 ◽  
pp. 599-600
Author(s):  
T. Ichikawa ◽  
K. Tarusawa ◽  
K. Yanagisawa ◽  
N. Itoh ◽  
M. Ueno
Keyword(s):  
Near Infrared ◽  
Wide Field ◽  
Large Format ◽  
Nearby Galaxies ◽  
Field Imaging ◽  
Wide Field Imaging

We present the results of wide-field imaging of nearby galaxies observed in the near-infrared using a large format array. The total magnitudes and mass-to-luminosity ratios of NGC 253, M 82, NGC 891, and some cluster members are discussed.

scholarly journals Wide Field Imaging and Photometry by 2k × 2k CCD

1994 ◽  
Vol 161 ◽  
pp. 17-19
Author(s):  
J.-S. Chen
Keyword(s):  
Field Of View ◽  
Large Field ◽  
Wide Field ◽  
List Type ◽  
Schmidt Telescope ◽  
Compressed Images ◽  
Basic Performance ◽  
Uv Coating ◽  
Field Imaging ◽  
Wide Field Imaging

The Ford Aerospace 2048 × 2048 CCD with UV coating is used at the BAO 60/90 cm f/3 Schmidt telescope focal plane, giving a field-of-view of about one square degree and spatial resolution of 1.67 arcsecond per pixel. The paper reviews the following topics: 1) basic performance of the system; 2) anti-blooming technique for a large field CCD; 3) flat fielding for a large field CCD; 4) photometric properties of compressed images.

Wide-Field Imaging of Nearby Galaxies in Near-Infrared Bands

1994 ◽  
pp. 599-600
Author(s):  
T. Ichikawa ◽  
K. Tarusawa ◽  
K. Yanagisawa ◽  
N. Itoh ◽  
M. Ueno
Keyword(s):  
Near Infrared ◽  
Wide Field ◽  
Nearby Galaxies ◽  
Field Imaging ◽  
Wide Field Imaging

scholarly journals GravityCam: Wide-field high-resolution high-cadence imaging surveys in the visible from the ground

2018 ◽  
Vol 35 ◽  
Author(s):  
C. Mackay ◽  
M. Dominik ◽  
I. A. Steele ◽  
C. Snodgrass ◽  
U. G. Jørgensen ◽  
...  
Keyword(s):  
High Resolution ◽  
Adaptive Optics ◽  
High Speed ◽  
Near Infrared ◽  
Infrared Imaging ◽  
Oort Cloud ◽  
Compact Objects ◽  
Image Resolution ◽  
Wide Field ◽  
Data Set

AbstractGravityCam is a new concept of ground-based imaging instrument capable of delivering significantly sharper images from the ground than is normally possible without adaptive optics. Advances in optical and near-infrared imaging technologies allow images to be acquired at high speed without significant noise penalty. Aligning these images before they are combined can yield a 2.5–3-fold improvement in image resolution. By using arrays of such detectors, survey fields may be as wide as the telescope optics allows. Consequently, GravityCam enables both wide-field high-resolution imaging and high-speed photometry. We describe the instrument and detail its application to provide demographics of planets and satellites down to Lunar mass (or even below) across the Milky Way. GravityCam is also suited to improve the quality of weak shear studies of dark matter distribution in distant clusters of galaxies and multiwavelength follow-ups of background sources that are strongly lensed by galaxy clusters. The photometric data arising from an extensive microlensing survey will also be useful for asteroseismology studies, while GravityCam can be used to monitor fast multiwavelength flaring in accreting compact objects and promises to generate a unique data set on the population of the Kuiper belt and possibly the Oort cloud.

scholarly journals The Importance of Wide-Field Imaging

1994 ◽  
Vol 161 ◽  
pp. 3-11
Author(s):  
V.A. Lipovetsky
Keyword(s):  
Exposure Time ◽  
Wide Field ◽  
Schmidt Telescope ◽  
Byurakan Survey ◽  
First Byurakan Survey ◽  
Survey Techniques ◽  
Field Imaging ◽  
Wide Field Imaging

The oncoming meeting and the big group of specialists gathered here reminds me of the late sixties, when I started the search for Markarian galaxies at the Byurakan Observatory. We carried out the survey with a 1 m Schmidt telescope (f/2.1). The First Byurakan Survey (FBS) consisted of more than two thousand plates with an exposure time of 30–60 minutes per plate. While guiding the telescope I therefore had plenty of time to think on future survey techniques.

Sign in / Sign up

Export Citation Format

Share Document