Massive young stellar objects in the Local Group irregular galaxy NGC 6822 identified using machine learning
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DOI: 10.1093/mnras/stab2386
Abstract: We present a supervised machine learning methodology to classify stellar populations in the Local Group dwarf-irregular galaxy NGC 6822. Near-IR colours (J − H, H − K, and J − K), K-band magnitudes and far-IR surface… read more here.
Keywords: machine learning; ngc 6822; galaxy ngc; local group ... See more keywords
Multicolour photometry and Gaia EDR3 astrometry of two couples of binary clusters (NGC 5617 and Trumpler 22) and (NGC 3293 and NGC 3324)
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DOI: 10.1093/mnras/stab691
Abstract: This paper presents a comprehensive analysis of two pairs of binary clusters (NGC 5617 and Trumpler 22) and (NGC 3293 and NGC 3324) located in the fourth quadrant of our Galaxy. For this purpose we… read more here.
Keywords: clusters ngc; ngc 5617; ngc 3293; ngc ... See more keywords
HST/WFPC2 imaging analysis and cloudy modelling of the multiple-shell planetary nebulae NGC 3242, NGC 6826, and NGC 7662
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DOI: 10.1093/mnras/sty1796
Abstract: We performed a detailed photometric analysis and photoionisation modelling on three high excitation multiple shell planetary nebulae: NGC 3242, NGC 6826 and NGC 7662. Archival HST/WFPC2 narrow band filter images were used to investigate shocked… read more here.
Keywords: analysis; ngc 3242; ngc; 6826 ngc ... See more keywords
Do sub-galactic regions follow the galaxy-wide X-ray scaling relations? The example of NGC 3310 and NGC 2276
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DOI: 10.1093/mnras/sty3131
Abstract: We present results from Chandra observations of the X-ray starburst galaxies NGC 3310 and NGC 2276. We detect 27 discrete sources in NGC 3310, and 19 discrete sources in NGC 2276 with luminosities above $\mathrm{1.0\times… read more here.
Keywords: ngc 2276; scaling relations; ngc; 3310 ngc ... See more keywords
Three new Galactic star clusters discovered in the field of the open cluster NGC 5999 withGaia DR2
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DOI: 10.1093/mnras/sty3511
Abstract: We report the serendipitous discovery of three new open clusters, named UFMG 1, UFMG 2 and UFMG 3 in the field of the intermediate-age cluster NGC 5999, by using Gaia DR2 data. A colour-magnitude filter… read more here.
Keywords: cluster ngc; field; three new; ngc ... See more keywords