Hubble House Telescope picture of spiral galaxy M91. Credit score: ESA/Hubble & NASA, J. Lee and the PHANGS-HST Staff
The spiral galaxy M91 fills the body of this Huge Subject Digicam 3 statement from the NASA/ESA Hubble House Telescope. M91 lies roughly 55 million light-years from Earth within the constellation Coma Berenices and — as is clear on this picture — is a barred spiral galaxy. Whereas M91’s outstanding bar makes for a spectacular galactic portrait, it additionally hides an astronomical monstrosity. Like our personal galaxy, M91 accommodates a supermassive black gap at its heart. A 2009 research utilizing archival Hubble information discovered that this central black gap weighs someplace between 9.6 and 38 million occasions as a lot because the Solar.
While archival Hubble information allowed astronomers to weigh M91’s central black gap, more moderen observations have had different scientific goals. This statement is a part of an effort to construct a treasure trove of astronomical information exploring the connections between younger stars and the clouds of chilly fuel by which they kind. To do that, astronomers used Hubble to acquire ultraviolet and visual observations of galaxies already seen at radio wavelengths by the ground-based Atacama Massive Millimeter/submillimeter Array (ALMA).
Observing time with Hubble is a extremely valued, and far sought-after, useful resource for astronomers. To acquire information from the telescope, astronomers first have to jot down a proposal detailing what they need to observe and highlighting the scientific significance of their observations. These proposals are then anonymized and judged on their scientific advantage by quite a lot of astronomical consultants. This course of is extremely aggressive: following Hubble’s newest name for proposals, solely round 13% of the proposals have been awarded observing time.
Are you interested by discovering out what Hubble is observing proper now? You possibly can comply with the house telescope’s observations in actual time at this hyperlink.
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