Spectroastrometric Study of Ro-vibrational CO Emission from the Herbig Ae star HD~179218 with iSHELL on the NASA Infrared Telescope Facility

Abstract

We present analysis of commissioning $M-$band data acquired with the infrared echelle spectrograph (iSHELL) on {\it NASA's Infrared Telescope Facility}. In this paper we describe the delivered performance of the instrument for these $M-$band observations and the data reduction process. The feasibility of using iSHELL for spectro-astrometry is tested on the Herbig Ae/Be star HD~179218 and we show that sub-milliarcsecond fidelity is achievable.

Accepted to PASP

References in corpus (15)

• The Gaia mission
• Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
• Spectro-astrometric imaging of molecular gas within protoplanetary disk gaps
• Structure of Herbig AeBe disks at the milliarcsecond scale A statistical survey in the H band using PIONIER-VLTI
• Parameters of Herbig Ae/Be and Vega-type stars
• Fingerprints of giant planets in the photospheres of Herbig stars
• Tracing the inner edge of the disk around HD 100546 with Ro-vibrational CO Emission Lines
• Circumstellar disks around Herbig Be stars
• The structure of disks around intermediate-mass young stars from mid-infrared interferometry. Evidence for a population of group II disks with gaps
• An empirical sequence of disk gap opening revealed by rovibrational CO
• The structure of disks around Herbig Ae/Be stars as traced by CO ro-vibrational emission
• The compact H$\alpha$ emitting regions of the Herbig Ae/Be stars HD 179218 and HD 141569 from CHARA spectro-interferometry
• A parameter study of self-consistent disk models around Herbig AeBe stars
• A proposed new diagnostic for Herbig disc geometry: FWHM versus J of CO ro-vibrational lines
• Near Infrared High Resolution Spectroscopy and Spectro-astrometry of Gas in Disks around Herbig Ae/Be Stars

Cited by in corpus (4)

• Scanning disk rings and winds in CO at 0.01-10 au: a high-resolution $M$-band spectroscopy survey with IRTF-iSHELL
• Probing planet formation and disk substructures in the inner disk of Herbig Ae stars with CO rovibrational emission
• High-Resolution Near Infrared Spectroscopy of HD~100546: IV. Orbiting Companion Disappears on Schedule
• Modeling of CO ro-vibrational line emission of HD 141569