NGC 3259 is a barred spiral galaxy located approximately 90 [2] million light-years from Earth, in the Ursa Major constellation. It has the morphological classification SAB(rs)bc, [ 3 ] which indicates that it is a spiral galaxy with a weak bar across the nucleus (SAB), an incomplete inner ring structure circling the bar (rs), and moderate to ...

2025年2月18日 · Low-mass active galactic nuclei (AGNs) can provide important constraints on the formation and evolution of supermassive black holes (SMBHs), a central challenge in modern cosmology. To date only small samples of intermediate-mass black holes (IMBHs, MBH <105M⊙) and 'lesser' supermassive black holes (LSMBHs, MBH <106M⊙) have been identified.

Low-mass active galactic nuclei (AGNs) can provide important constraints on the formation and evolution of supermassive black holes (SMBHs), a central challenge in modern cosmology.

2022年4月8日 · Physical Information: Based on a recessional velocity of 1685 km/sec (and H 0 = 70 km/sec/Mpc), NGC 3259 is about 75 to 80 million light years away, in good agreement with widely varying redshift-independent distance estimates of about 55 to 135 million light years. Given that and its apparent size of about 1.75 by 0.95 arcmin (from the images ...

Media in category "NGC 3259" The following 3 files are in this category, out of 3 total.

NGC 3259是大熊座的星系。

NGC 3259 is a barred spiral galaxy located approximately 90 [2] million light-years from Earth, in the Ursa Major constellation. It has the morphological classification SAB(rs)bc, [3] which indicates that it is a spiral galaxy with a weak bar across the nucleus (SAB), an incomplete inner ring structure circling the bar (rs), and moderate to ...

2025年2月20日 · A detailed photometric analysis of NGC 3259 using HST images provides a central spheroid stellar mass estimate 25 times lower than expected from the M BH −M ∗

2012年1月9日 · This classic shot of a galaxy in the constellation of Ursa Major was taken by the NASA/ESA Hubble Space Telescope. NGC 3259 is a bright barred spiral galaxy located approximately 110 million light-years from Earth.

2012年8月23日 · About 110 million light years away, the bright, barred spiral galaxy NGC 3259 was just forming stars in dark bands of dust and gas. Here on the part of the Earth where NASA's Goddard Space Flight Center would eventually be built, a plant-eating dinosaur sensed predators nearby and quickened its pace, leaving a deep imprint in the Cretaceous mud.