VizieR Online Data Catalog: Gemini Planet Imager spectra of HR 8799 c/d/e (Greenbaum+, 2018)
Abstract
HR 8799 was observed with the GPI Integral Field Spectrograph (IFS) (Macintosh et al. 2014PNAS..11112661M), using its K1 and K2 filters, on 2013 November 17 (median seeing 0.97") and November 18 (median seeing 0.75 arcsec), respectively, during GPI's first light. The data were acquired with a continuous field-of-view (FOV) rotation near the meridian transit to achieve maximum FOV rotation suitable for ADI processing (Marois et al. 2006ApJ...641..556M). Conditions are described in detail in Ingraham et al. (2014ApJ...794L..15I). During the last 10 exposures of the K1 observations, cryocooler power was decreased to 30% to reduce vibration, and the last 14 exposures of the K2 observations had the cryocooler power decreased. Since commissioning, linear-quadratic-Gaussian control has been implemented (Poyneer et al. 2016ApOpt..55..323P) and the cryocooling system has been upgraded with active dampers to mitigate cryocooler cycle vibrations. HR 8799 was observed again on 2016 September 19 in GPI's H band (median seeing 0.97"), as a part of the GPI Expolanet Survey with the updated active damping system. Planet b falls outside the FOV in these data.
(1 data file).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- November 2018
- DOI:
- 10.26093/cds/vizier.51550226
- Bibcode:
- 2018yCat..51550226G
- Keywords:
-
- Stars: variable;
- Exoplanets;
- Spectra: infrared