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Issue: Tập 23, Số 3 (2026)
Section: Articles
DOI: 10.54607/hcmue.js.23.3.4430(2026)
Date Published: 31/03/2026
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How to Cite
Phan, B. N. (2026). A SYSTEMATIC SEARCH FOR NEW NEARBY BROWN DWARF CANDIDATES. Ho Chi Minh City University of Education Journal of Science, 23(3), 626-630. https://doi.org/10.54607/hcmue.js.23.3.4430(2026)

A SYSTEMATIC SEARCH FOR NEW NEARBY BROWN DWARF CANDIDATES

Phan Bao Ngoc1,
1 International University, Vietnam National University Ho Chi Minh City, Vietnam

Main Article Content

Abstract

The data release in 2023 from Gaia, a space astrometry survey, contains about 1.8 billion sources with very high-precision positions, distances, and proper motions. Using the Gaia astrometry and the DENIS photometry, we search for new nearby brown dwarfs over about 13,500 square degrees in the DENIS database. This paper presents our selection criteria of brown dwarf candidates and a preliminary result of 439 candidates with spectral types estimated from M8 to L2 and photometric distances from 30 to 75 pc. 

Keywords

brown dwarfs, circumstellar matter, free-floating planetary mass objects, photometry

Article Details

References

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