Abstract
The integral field spectrograph configuration of the LMIRCam science camera within the Large Binocular Telescope Interferometer (LBTI) facilitates 2 to 5 μm spectroscopy of directly imaged gas-giant exoplanets. The mode, dubbed ALES, comprises magnification optics, a lenslet array, and direct-vision prisms, all of which are included within filter wheels in LMIRCam. Our observing approach includes manual adjustments to filter wheel positions to optimize alignment, on/off nodding to track sky-background variations, and wavelength calibration using narrow band filters in series with ALES optics. For planets with separations outside our 1"x1" field of view, we use a three-point nod pattern to visit the primary, secondary and sky. To minimize overheads we select the longest exposure times and nod periods given observing conditions, especially sky brightness and variability. Using this strategy we collected several datasets of low-mass companions to nearby stars.
| Original language | English (US) |
|---|---|
| Title of host publication | Ground-based and Airborne Instrumentation for Astronomy VII |
| Editors | Luc Simard, Luc Simard, Christopher J. Evans, Hideki Takami |
| Publisher | SPIE |
| Volume | 10702 |
| ISBN (Print) | 9781510619579 |
| DOIs | |
| State | Published - Jan 1 2018 |
| Event | Ground-based and Airborne Instrumentation for Astronomy VII 2018 - Austin, United States Duration: Jun 10 2018 → Jun 14 2018 |
Other
| Other | Ground-based and Airborne Instrumentation for Astronomy VII 2018 |
|---|---|
| Country | United States |
| City | Austin |
| Period | 6/10/18 → 6/14/18 |
Fingerprint
Keywords
- Exoplanet Characterization
- High-Contrast
- Integral Field Spectroscopy
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Cite this
On-sky operations with the ALES integral field spectrograph. / Stone, Jordan M.; Skemer, Andrew J.; Hinz, Philip M; Briesemeister, Zack; Barman, Travis S; Woodward, Charles E.; Skrutskie, Mike; Leisenring, Jarron.
Ground-based and Airborne Instrumentation for Astronomy VII. ed. / Luc Simard; Luc Simard; Christopher J. Evans; Hideki Takami. Vol. 10702 SPIE, 2018. 107023F.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - On-sky operations with the ALES integral field spectrograph
AU - Stone, Jordan M.
AU - Skemer, Andrew J.
AU - Hinz, Philip M
AU - Briesemeister, Zack
AU - Barman, Travis S
AU - Woodward, Charles E.
AU - Skrutskie, Mike
AU - Leisenring, Jarron
PY - 2018/1/1
Y1 - 2018/1/1
N2 - The integral field spectrograph configuration of the LMIRCam science camera within the Large Binocular Telescope Interferometer (LBTI) facilitates 2 to 5 μm spectroscopy of directly imaged gas-giant exoplanets. The mode, dubbed ALES, comprises magnification optics, a lenslet array, and direct-vision prisms, all of which are included within filter wheels in LMIRCam. Our observing approach includes manual adjustments to filter wheel positions to optimize alignment, on/off nodding to track sky-background variations, and wavelength calibration using narrow band filters in series with ALES optics. For planets with separations outside our 1"x1" field of view, we use a three-point nod pattern to visit the primary, secondary and sky. To minimize overheads we select the longest exposure times and nod periods given observing conditions, especially sky brightness and variability. Using this strategy we collected several datasets of low-mass companions to nearby stars.
AB - The integral field spectrograph configuration of the LMIRCam science camera within the Large Binocular Telescope Interferometer (LBTI) facilitates 2 to 5 μm spectroscopy of directly imaged gas-giant exoplanets. The mode, dubbed ALES, comprises magnification optics, a lenslet array, and direct-vision prisms, all of which are included within filter wheels in LMIRCam. Our observing approach includes manual adjustments to filter wheel positions to optimize alignment, on/off nodding to track sky-background variations, and wavelength calibration using narrow band filters in series with ALES optics. For planets with separations outside our 1"x1" field of view, we use a three-point nod pattern to visit the primary, secondary and sky. To minimize overheads we select the longest exposure times and nod periods given observing conditions, especially sky brightness and variability. Using this strategy we collected several datasets of low-mass companions to nearby stars.
KW - Exoplanet Characterization
KW - High-Contrast
KW - Integral Field Spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=85052628328&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85052628328&partnerID=8YFLogxK
U2 - 10.1117/12.2313977
DO - 10.1117/12.2313977
M3 - Conference contribution
SN - 9781510619579
VL - 10702
BT - Ground-based and Airborne Instrumentation for Astronomy VII
A2 - Simard, Luc
A2 - Simard, Luc
A2 - Evans, Christopher J.
A2 - Takami, Hideki
PB - SPIE
ER -