SPECtrophotometer for TRansmission Spectroscopy of Exoplanets (SPECTR)

Yeon Ho Choi; Myeong Gu Park; Kang Min Kim; Jae Rim Koo; Tae Yang Bang; Chan Park; Jeong Gyun Jang; Inwoo Han; Bi Ho Jang; Jong Ung Lee; Ueejeong Jeong; Byeong Cheol Lee

doi:10.1088/1538-3873/ad692d

SPECtrophotometer for TRansmission Spectroscopy of Exoplanets (SPECTR)

Yeon Ho Choi, Myeong Gu Park, Kang Min Kim, Jae Rim Koo, Tae Yang Bang, Chan Park, Jeong Gyun Jang, Inwoo Han, Bi Ho Jang, Jong Ung Lee, Ueejeong Jeong, Byeong Cheol Lee

Research output: Contribution to journal › Article › peer-review

Abstract

The SPECtrophotometer for TRansmission spectroscopy of exoplanets (SPECTR) is a new low-resolution optical (3800-6850 Å) spectrophotometer installed at the Bohyunsan Optical Astronomy Observatory 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′ 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, 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.

Original language	English
Article number	085001
Journal	Publications of the Astronomical Society of the Pacific
Volume	136
Issue number	8
DOIs	https://doi.org/10.1088/1538-3873/ad692d
State	Published - 1 Aug 2024

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title = "SPECtrophotometer for TRansmission Spectroscopy of Exoplanets (SPECTR)",

abstract = "The SPECtrophotometer for TRansmission spectroscopy of exoplanets (SPECTR) is a new low-resolution optical (3800-6850 {\AA}) spectrophotometer installed at the Bohyunsan Optical Astronomy Observatory 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′ 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, 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{\textquoteright}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.",

author = "Choi, \{Yeon Ho\} and Park, \{Myeong Gu\} and Kim, \{Kang Min\} and Koo, \{Jae Rim\} and Bang, \{Tae Yang\} and Chan Park and Jang, \{Jeong Gyun\} and Inwoo Han and Jang, \{Bi Ho\} and Lee, \{Jong Ung\} and Ueejeong Jeong and Lee, \{Byeong Cheol\}",

year = "2024",

month = aug,

day = "1",

doi = "10.1088/1538-3873/ad692d",

language = "English",

volume = "136",

journal = "Publications of the Astronomical Society of the Pacific",

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T1 - SPECtrophotometer for TRansmission Spectroscopy of Exoplanets (SPECTR)

AU - Choi, Yeon Ho

AU - Park, Myeong Gu

AU - Kim, Kang Min

AU - Koo, Jae Rim

AU - Bang, Tae Yang

AU - Park, Chan

AU - Jang, Jeong Gyun

AU - Han, Inwoo

AU - Jang, Bi Ho

AU - Lee, Jong Ung

AU - Jeong, Ueejeong

AU - Lee, Byeong Cheol

PY - 2024/8/1

Y1 - 2024/8/1

N2 - The SPECtrophotometer for TRansmission spectroscopy of exoplanets (SPECTR) is a new low-resolution optical (3800-6850 Å) spectrophotometer installed at the Bohyunsan Optical Astronomy Observatory 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′ 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, 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.

AB - The SPECtrophotometer for TRansmission spectroscopy of exoplanets (SPECTR) is a new low-resolution optical (3800-6850 Å) spectrophotometer installed at the Bohyunsan Optical Astronomy Observatory 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′ 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, 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.

UR - https://www.scopus.com/pages/publications/85201853186

U2 - 10.1088/1538-3873/ad692d

DO - 10.1088/1538-3873/ad692d

M3 - Article

AN - SCOPUS:85201853186

SN - 0004-6280

VL - 136

JO - Publications of the Astronomical Society of the Pacific

JF - Publications of the Astronomical Society of the Pacific

IS - 8

M1 - 085001

ER -

SPECtrophotometer for TRansmission Spectroscopy of Exoplanets (SPECTR)

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