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   Articles with "ngc" as a keyword



Massive young stellar objects in the Local Group irregular galaxy NGC 6822 identified using machine learning

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recommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"

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
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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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recommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"

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

Cloud populations versus galactic environment in NGC 4689, NGC 628, NGC 1566 and NGC 4321

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recommendations! Published in 2025 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf411

Abstract: The study of molecular clouds in galaxies beyond the Local Group is limited by the need to efficiently sample diverse galactic environments across galactic discs, typically resulting in a loss of resolution. Using a high-resolution… read more here.

Keywords: ngc 1566; ngc 4321; ngc 4689; environment ... 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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recommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

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
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Do sub-galactic regions follow the galaxy-wide X-ray scaling relations? The example of NGC 3310 and NGC 2276

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recommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

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
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Three new Galactic star clusters discovered in the field of the open cluster NGC 5999 withGaia DR2

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recommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

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

New radial velocities for 40 nearby dwarf galaxies

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recommendations! Published in 2024 at "Monthly Notices of the Royal Astronomical Society: Letters"

DOI: 10.1093/mnrasl/slae111

Abstract: The 6-meter BTA telescope has been used to determine radial velocities for 40 galaxies, recently identified in the DESI Legacy Imaging Surveys as nearby objects. Half of them have kinematic distances within 11 Mpc being… read more here.

Keywords: velocities nearby; radial velocities; new radial; ngc ... See more keywords

An extremely rare primary non-gestational choriocarcinoma of the vagina: a case report

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recommendations! Published in 2025 at "Annals of Medicine and Surgery"

DOI: 10.1097/ms9.0000000000003419

Abstract: Introduction and importance: Primary non-gestational choriocarcinoma (NGC) of the vagina is an exceedingly rare and aggressive malignancy originating from pluripotent germ cells, with very few cases documented in the literature. Differentiating it from gestational choriocarcinoma… read more here.

Keywords: case; primary non; ngc; gestational choriocarcinoma ... See more keywords

Detection and characterization of quasiperiodic oscillations in the Seyfert galaxy NGC 4151

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recommendations! Published in 2025 at "Physical Review D"

DOI: 10.1103/physrevd.111.043027

Abstract: This study aims to detect and characterize quasi-periodic oscillations (QPOs) signals in X-ray observations of NGC 4151. We employed the Weighted Wavelet Z-transform (WWZ) and Lomb-Scargle periodogram (LSP) methods for our analysis. QPO signals with… read more here.

Keywords: qpo signals; ngc 4151; black hole; ngc ... See more keywords