gjdonatiello
Pisces VII/Triangulum III - Pegasus V/Andromeda XXXIV
Pisces VII/Triangulum III - Pegasus V/Andromeda XXXIV
Credit: Gemini North, Giuseppe Donatiello
Pisces VII / Triangulum III
Pisces VII is one of the faintest dwarf galaxy detected beyond the Milky Way at 820 kpc (2.6 milion light years). Pisces VII is an ultra faint dwarf (UFD) first seen in DECam images, and followed by the TNG. It is quite close in projection to M33 so is a possible very small satellite.
It is my second discovery in this topic.
more here: arxiv.org/abs/2104.03859
Pegasus V (Andromeda XXXIV)
Pegasus V (Andromeda XXXIV) is a new ultra-faint satellite galaxy of Andromeda (M31) and is one of the furthest away as it is about 242 kpc (780,000 light years) from its nucleus. However, it is slightly closer to our Milky Way, in fact it is 692 kpc (about 2.25 million light years) away. The diameter is about 600 light years.
It was studied by the same international group that characterized Pisces VII (Michelle L. M. Collins, Emily J. E. Charles, David Martinez Delgado, Matteo Monelli, Noushin Karim, Giuseppe Donatiello, Erik J . Tollerud, Walter Boschin) and the results were illustrated in a paper with first author Dr. Collins of the University of Surrey.
I discovered PegV during a specific search for new M31 satellites on March 17, 2021 in the DESI LIS data. It is my sixth galaxy discovered and the second in the Local Group.
(Collins, M. L. M. et al 2022) : arxiv.org/abs/2204.09068
Pisces VII/Triangulum III - Pegasus V/Andromeda XXXIV
Pisces VII/Triangulum III - Pegasus V/Andromeda XXXIV
Credit: Gemini North, Giuseppe Donatiello
Pisces VII / Triangulum III
Pisces VII is one of the faintest dwarf galaxy detected beyond the Milky Way at 820 kpc (2.6 milion light years). Pisces VII is an ultra faint dwarf (UFD) first seen in DECam images, and followed by the TNG. It is quite close in projection to M33 so is a possible very small satellite.
It is my second discovery in this topic.
more here: arxiv.org/abs/2104.03859
Pegasus V (Andromeda XXXIV)
Pegasus V (Andromeda XXXIV) is a new ultra-faint satellite galaxy of Andromeda (M31) and is one of the furthest away as it is about 242 kpc (780,000 light years) from its nucleus. However, it is slightly closer to our Milky Way, in fact it is 692 kpc (about 2.25 million light years) away. The diameter is about 600 light years.
It was studied by the same international group that characterized Pisces VII (Michelle L. M. Collins, Emily J. E. Charles, David Martinez Delgado, Matteo Monelli, Noushin Karim, Giuseppe Donatiello, Erik J . Tollerud, Walter Boschin) and the results were illustrated in a paper with first author Dr. Collins of the University of Surrey.
I discovered PegV during a specific search for new M31 satellites on March 17, 2021 in the DESI LIS data. It is my sixth galaxy discovered and the second in the Local Group.
(Collins, M. L. M. et al 2022) : arxiv.org/abs/2204.09068