A Search for New Dwarf Galaxies Outside the Nearby Groups

Karachentsev, I. D.; Karachentseva, V. E.; Kaisin, S. S.; Kaisina, E. I.

doi:10.1007/s10511-024-09801-w

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2024

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Cited by 2 publications

References 26 publications

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New radial velocities for 40 nearby dwarf galaxies

Karachentsev,

Chazov,

Kaisin

2024

Monthly Notices of the Royal Astronomical Society: Letters

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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 new probable companions to the bright Local Volume galaxies: NGC 628, Maffei 2, NGC 2787, M 81, NGC 4605 and NGC 4631. Six relatively isolated objects with heliocentric velocities in the range of [ − 150, +70] km s−1, together with the blue compact dwarf NGC 6789, form a diffuse association of dwarf galaxies located in the near part of the Local Void.

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New radial velocities for 40 nearby dwarf galaxies

Karachentsev,

Chazov,

Kaisin

2024

Monthly Notices of the Royal Astronomical Society: Letters

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First results of HI survey of recently discovered close dwarf galaxies

Nazarova,

Cannon,

Karachentsev

et al. 2024

Modern Astronomy: From the Early Universe to Exoplanets and Black Holes

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We describe the results of observations with the 100m Robert C. Byrd Green Bank Telescope (GBT) in the HI line of 54 nearby dwarf galaxies found mainly in the DESI Legacy Imaging Surveys. Of these, we detected 35 galaxies with the following median parameters: the HI-flux of 0.53 Jy km/s, heliocentric velocity of 1123 km/s, and $W_{50}$ line width of 33 km/s. Most of them are isolated irregular objects, and some have turned out to be new probable satellites of nearby disc galaxies: NGC 2787, NGC 3556, NGC 4490, and NGC 5055. The detected galaxies are predominantly gas-rich systems with a median gaseous-mass-to-stellar-mass ratio of 2.41.

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A Search for New Dwarf Galaxies Outside the Nearby Groups

Cited by 2 publications

References 26 publications

New radial velocities for 40 nearby dwarf galaxies

New radial velocities for 40 nearby dwarf galaxies

First results of HI survey of recently discovered close dwarf galaxies

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