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The Wolf–Lundmark–Melotte Galaxy (WLM) is a barred irregular galaxy discovered in 1909 by Max Wolf, located on the outer edges of the Local Group. The discovery of the nature of the galaxy was accredited to Knut Lundmark and Philibert Jacques Melotte in 1926. It is located in the constellation of Cetus.
DLA0817g, also known as the Wolfe Disk, [1] is a galaxy located in the constellation Cancer, 12.276 billion light-years (3.764 billion parsecs) from Earth. [2]Discovered in 2017 using observations made with the Atacama Large Millimeter Array (ALMA), it was studied with the Karl G. Jansky Very Large Array (JVLA) observatory and the Hubble Space Telescope.
The Closest Wolf-Rayet star to Earth. HD 45166: 3,232: 2: qWR: 9.88: ... Host galaxy Star system Median distance Stars in system Spectral type Apparent magnitude (V)
A Wolf–Rayet galaxy is a type of starburst galaxy where a sufficient number of WR stars exist that their characteristic emission line spectra become visible in the overall spectrum of the galaxy. [73] Specifically a broad emission feature due to the 468.6 nm He ii and nearby spectral lines is the defining characteristic of a Wolf–Rayet galaxy.
WR 102 was first mentioned as the possible optical counterpart to a peculiar X-ray source GX 3+1. [6] However, it became clear that it was a separate object and in 1971 it was highlighted as a luminous star with unusual O VI emission lines in its spectrum. [7]
The nebula has been studied at radio and x-ray wavelengths, but it is still unclear whether it was produced at the class O main sequence stage of development, as a red supergiant, luminous blue variable, or mainly as a Wolf-Rayet star. [2] NGC 2361 is a bright knot of nebulosity on one edge of the central ring of NGC 2359.
AB7 was first listed by Azzopardi and Vigneau as a probable member of the Small Magellanic Cloud and noted to be a Wolf Rayet star. It was numbered 336a, the "a" meaning it is an addition between 336 and 337 of the existing catalogue.
Narrowband infrared observations of several spectral features around 2 μm showed that WR 102ka was a Wolf Rayet star with a likely classification of WN10. [7] It was also proposed as a possible luminous blue variable. [8] The Spitzer Space Telescope observed WR 102ka at wavelengths of 3.6 μm, 8 μm, and 24 μm on April 20, 2005. These ...