SPECtrophotometer for TRansmission spectroscopy of exoplanets (SPECTR)
arXiv:2407.21268 · doi:10.1088/1538-3873/ad692d
Abstract
The SPECtrophotometer for TRansmission spectroscopy of exoplanets (SPECTR) is a new low-resolution optical (3800 Å - 6850 Å) spectrophotometer installed at the Bohyunsan Optical Astronomy Observatory (BOAO) 1.8 m telescope. SPECTR is designed for observing the transmission spectra of transiting exoplanets. Unique features of SPECTR are its long slit length of 10 arcminutes which facilitates observing the target and the comparison star simultaneously, and its wide slit width to minimize slit losses. SPECTR will be used to survey exoplanets, such as those identified by the Transiting Exoplanet Survey Satellite (TESS), providing information about their radii across the wavelength range. In this paper, we present the design of SPECTR and the observational results of the partial transit of HD 189733 b and a full transit of Qatar-8 b. Analyses show the SPECTR's capability on the white light curves with an accuracy of one ppt. The transmission spectrum of HD 189733 b shows general agreement with previous studies.
arXiv comment12 pages, 11 figures, 5 tables, accepted for PASP
References in corpus (42)
- Astropy: A Community Python Package for Astronomy
- emcee: The MCMC Hammer
- The NumPy array: a structure for efficient numerical computation
- The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
- Analytic Lightcurves for Planetary Transit Searches
- Detection of an Extrasolar Planet Atmosphere
- Kepler Presearch Data Conditioning II - A Bayesian Approach to Systematic Error Correction
- Fast and scalable Gaussian process modeling with applications to astronomical time series
- The Revised TESS Input Catalog and Candidate Target List
- A continuum from clear to cloudy hot-Jupiter exoplanets without primordial water depletion
- The TESS Input Catalog and Candidate Target List
- Infrared Transmission Spectroscopy of the Exoplanets HD209458b and XO-1b Using the Wide Field Camera-3 on the Hubble Space Telescope
- ELODIE metallicity-biased search for transiting Hot Jupiters II. A very hot Jupiter transiting the bright K star HD189733
- Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 parsecs: The Northern Sample I
- Accurate, Empirical Radii and Masses of Planets and their Host Stars with Gaia Parallaxes
- The prevalence of dust on the exoplanet HD 189733b from Hubble and Spitzer observations
- Rayleigh scattering in the transit spectrum of HD 189733b
- H- Opacity and Water Dissociation in the Dayside Atmosphere of the Very Hot Gas Giant WASP-18 b
- PyTransit: Fast and Easy Exoplanet Transit Modelling in Python
- LDTk: Limb Darkening Toolkit
- Identification of carbon dioxide in an exoplanet atmosphere
- A solar C/O and sub-solar metallicity in a hot Jupiter atmosphere
- ACCESS I: An Optical Transmission Spectrum of GJ 1214b Reveals a Heterogeneous Stellar Photosphere
- ACCESS: A featureless optical transmission spectrum for WASP-19b from Magellan/IMACS
- Atmospheric Rossiter-McLaughlin effect and transmission spectroscopy of WASP-121b with ESPRESSO
- Minerva-Australis I: Design, Commissioning, & First Photometric Results
- VLT FORS2 comparative transmission spectroscopy: Detection of Na in the atmosphere of WASP-39b from the ground
- Confirmation of WASP-107b's extended Helium atmosphere with Keck II/NIRSPEC
- Refined parameters of the planet orbiting HD 189733
- Warm Ice Giant GJ 3470b. I. A Flat Transmission Spectrum Indicates a Hazy, Low-methane, and/or Metal-rich Atmosphere
- LRG-BEASTS III: Ground-based transmission spectrum of the gas giant orbiting the cool dwarf WASP-80
- Gemini/GMOS Transmission Spectral Survey: Complete Optical Transmission Spectrum of the hot Jupiter WASP-4b
- Detection of a Planetary Companion around the giant star \gam1leo
- LRG-BEASTS: sodium absorption and Rayleigh scattering in the atmosphere of WASP-94A b using NTT/EFOSC2
- ACCESS: Ground-based Optical Transmission Spectroscopy of the Hot Jupiter WASP-4b
- The Qatar Exoplanet Survey
- LRG-BEASTS: Ground-based Detection of Sodium and a Steep Optical Slope in the Atmosphere of the Highly Inflated Hot-Saturn WASP-21b
- ACCESS: Confirmation of no potassium in the atmosphere of WASP-31b
- Qatar Exoplanet Survey: Qatar-8b, 9b and 10b --- A Hot Saturn and Two Hot Jupiters
- Chromatic line-profile tomography to reveal exoplanetary atmospheres: application to HD 189733b
- ACCESS: Tentative detection of HO in the ground-based optical transmission spectrum of the low-density hot Saturn HATS-5b
- A Transmission Spectrum Of HD 189733b From Multiple Broadband Filter Observations