Very Luminous Carbon Stars in the Outer Disk of the Triangulum Spiral Galaxy [PDF]
Astronomy and Astrophysics, 2004 4 pages, 4 figures.
Ken Freeman +2 more
exaly +5 more sources
Astrophysical Journal, 2022 Abstract Low-resolution LAMOST and Keck spectra of blue supergiant stars distributed over the disks of the Local Group spiral galaxies M31 and M33 are analyzed to determine stellar effective temperatures, gravities, metallicities, and reddening. Logarithmic metallicities at the center of the galaxies (in solar units) of 0.30 ± 0.09 and 0.
Huawei Zhang, Jing-Kun Zhao, Yang Huang
exaly +3 more sources
The Star Formation Law at GMC Scales in M33, the Triangulum Galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 We present a high spatial resolution study, on scales of $\sim$100pc, of the relationship between star-formation rate (SFR) and gas content within Local Group galaxy M33. Combining deep SCUBA-2 observations with archival GALEX, SDSS, WISE, Spitzer and submillimetre Herschel data, we are able to model the entire SED from UV to sub-mm wavelengths.
Walter Gear +2 more
exaly +4 more sources
Stellar Kinematics of Dwarf Galaxies From Multi-Epoch Spectroscopy: Application to Triangulum II
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT We present new MMT/Hectochelle spectroscopic measurements for 257 stars observed along the line of sight to the ultrafaint dwarf galaxy Triangulum II (Tri II). Combining results from previous Keck/DEIMOS spectroscopy, we obtain a sample that includes 16 likely members of Tri II, with up to 10 independent redshift measurements ...
Nicolas Martin +2 more
exaly +4 more sources
Cloud-Scale Radio Surveys of Star Formation and Feedback in Triangulum Galaxy M 33: VLA Observations
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT Studying the interplay between massive star formation and the interstellar medium (ISM) is paramount to understand the evolution of galaxies. Radio continuum (RC) emission serves as an extinction-free tracer of both massive star formation and the energetic components of the ISM.
Eric Koch +2 more
exaly +5 more sources
KAT-7 Detection of Radio Halo Emission in the Triangulum Australis Galaxy Cluster [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 8 pages, 3 figures, accepted ...
Nadeem Oozeer +2 more
exaly +6 more sources
The Galactic Foreground Reddening in the Direction of the Nearby Triangulum Galaxy M33
Astronomical Journal, 1987 Michael D Joner
exaly +2 more sources
Keck Spectroscopy and Spitzer Space Telescope Analysis of the Outer Disk of the Triangulum Spiral Galaxy M 33 [PDF]
Astronomy and Astrophysics, 2007 In an earlier study of the spiral galaxy M33, we photometrically identified arcs or outer spiral arms of intermediate age (0.6 Gyr - 2 Gyr) carbon stars precisely at the commencement of the HI-warp. Stars in the arcs were unresolved, but were likely thermally-pulsing asymptotic giant branch carbon stars.
Robert Gehrz +2 more
exaly +5 more sources
CLUES About M33: The Reversed Radial Stellar Age Gradient in the Outskirts of Triangulum Galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 HST/ACS observations along the major axis of M33 show that the mean age of its stars decreases with increasing distance from the galaxy center. Such a behavior is consistent with an inside-out growth of the disc. However, in the outermost observed field, at r$\simeq$11.6 kpc, a reversal of this gradient is detected, with old stars found in high ...
Chris B Brook +2 more
exaly +5 more sources
Chemical Abundances in the Ultra-Faint Dwarf Galaxies Grus I and Triangulum II: Neutron-Capture Elements as a Defining Feature of the Faintest Dwarfs [PDF]
Astrophysical Journal, 2019 Abstract We present high-resolution spectroscopy of four stars in two candidate ultra-faint dwarf galaxies (UFDs), Grus I (Gru I) and Triangulum II (Tri II). Neither object currently has a clearly determined velocity dispersion, placing them in an ambiguous region of parameter space between dwarf galaxies and globular clusters (GCs).
Terese Hansen +2 more
exaly +5 more sources