The M33 Synoptic Stellar Survey. II. Mira Variables

Wenlong Yuan; Shiyuan He; Lucas M. Macri; James Long; Jianhua Z. Huang

doi:10.3847/1538-3881/aa63f1

The M33 Synoptic Stellar Survey. II. Mira Variables

Wenlong Yuan, Shiyuan He, Lucas M. Macri, James Long, Jianhua Z. Huang

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

25 Scopus citations

Abstract

We present the discovery of 1847 Mira candidates in the Local Group galaxy M33 using a novel semi-parametric periodogram technique coupled with a random forest classifier. The algorithms were applied to ∼2.4 ×10⁵ I-band light curves previously obtained by the M33 Synoptic Stellar Survey. We derive preliminary period-luminosity relations at optical, near-infrared, and mid-infrared wavelengths and compare them to the corresponding relations in the Large Magellanic Cloud.

Original language	English (US)
Article number	170
Journal	Astronomical Journal
Volume	153
Issue number	4
DOIs	https://doi.org/10.3847/1538-3881/aa63f1
State	Published - Apr 2017
Externally published	Yes

Keywords

methods: statistical
stars: variables: general

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-3881/aa63f1

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abstract = "We present the discovery of 1847 Mira candidates in the Local Group galaxy M33 using a novel semi-parametric periodogram technique coupled with a random forest classifier. The algorithms were applied to ∼2.4 ×105 I-band light curves previously obtained by the M33 Synoptic Stellar Survey. We derive preliminary period-luminosity relations at optical, near-infrared, and mid-infrared wavelengths and compare them to the corresponding relations in the Large Magellanic Cloud.",

keywords = "methods: statistical, stars: variables: general",

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AU - Yuan, Wenlong

AU - He, Shiyuan

AU - Macri, Lucas M.

AU - Long, James

AU - Huang, Jianhua Z.

PY - 2017/4

Y1 - 2017/4

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AB - We present the discovery of 1847 Mira candidates in the Local Group galaxy M33 using a novel semi-parametric periodogram technique coupled with a random forest classifier. The algorithms were applied to ∼2.4 ×105 I-band light curves previously obtained by the M33 Synoptic Stellar Survey. We derive preliminary period-luminosity relations at optical, near-infrared, and mid-infrared wavelengths and compare them to the corresponding relations in the Large Magellanic Cloud.

KW - methods: statistical

KW - stars: variables: general

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JO - Astronomical Journal

JF - Astronomical Journal

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ER -

The M33 Synoptic Stellar Survey. II. Mira Variables

Abstract

Keywords

ASJC Scopus subject areas

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