Messier 58 (also known as ''M58'' and ''NGC 4579'') is an intermediate barred spiral galaxy with a weak inner ring structure located within the constellation

Virgo Virgo may refer to: *Virgo (astrology), the sixth astrological sign of the zodiac * Virgo (constellation), a constellation *Virgo Cluster, a cluster of galaxies in the constellation Virgo *Virgo Stellar Stream, remains of a dwarf galaxy * Virgo Su ...

, approximately 68 million light-years away from

Earth Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surfa ...

. It was discovered by

Charles Messier Charles Messier (; 26 June 1730 – 12 April 1817) was a French astronomer. He published an astronomical catalogue consisting of 110 nebulae and star clusters, which came to be known as the ''Messier objects''. Messier's purpose ...

on April 15, 1779 and is one of four barred spiral galaxies that appear in Messier's catalogue.The other barred spiral galaxies in Messier's catalogue are

Messier 91 Messier 91 (also known as NGC 4548 or M91) is a barred spiral galaxy that is found in the south of Coma Berenices. It is in the local supercluster and is part of the Virgo Cluster of galaxies. It is about 63 million light-years away from our ga ...

Messier 95 Messier 95, also known as M95 or NGC 3351, is a barred spiral galaxy about 33 million light-years away in the zodiac constellation Leo (constellation), Leo. It was discovered by Pierre Méchain in 1781, and catalogued by compatriot Charles Mess ...

and

Messier 109 Messier 109 (also known as NGC 3992) is a barred spiral galaxy exhibiting a weak inner ring structure around the central bar approximately away in the northern constellation Ursa Major. M109 can be seen south-east of the star Phecda (γ UMa, Gam ...

M58 is one of the brightest galaxies in the

Virgo Cluster The Virgo Cluster is a large cluster of galaxies whose center is 53.8 ± 0.3 Mly (16.5 ± 0.1 Mpc) away in the constellation Virgo. Comprising approximately 1,300 (and possibly up to 2,000) member galaxies, the cluster forms the heart of the la ...

. From 1779 it was arguably (though unknown at that time) the farthest known astronomical object until the release of the New General Catalogue in the 1880s and even more so the publishing of redshift values in the 1920s.

Early observations

Charles Messier discovered Messier 58, along with the

elliptical galaxies An elliptical galaxy is a type of galaxy with an approximately ellipsoidal shape and a smooth, nearly featureless image. They are one of the four main classes of galaxy described by Edwin Hubble in his Hubble sequence and 1936 work ''The Real ...

Messier 59 Messier 59 or M59, also known as NGC 4621, is an elliptical galaxy in the equatorial constellation of Virgo. It is a member of the Virgo Cluster, with the nearest fellow member away and around 5 magnitudes fainter. The nearest cluster member of ...

and

Messier 60 Messier 60 or M60, also known as NGC 4649, is an elliptical galaxy approximately 57 million light-years away in the equatorial constellation of Virgo. Together with NGC 4647, it forms a pair known as Arp 116. Messier 60 and nearby ellipti ...

, on April 15, 1779. M58 was reported on the chart of the

Comet of 1779 A comet is an icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process that is called outgassing. This produces a visible atmosphere or coma, and sometimes also a tail. These phenomena ar ...

as it was almost on the same parallel as the star

Epsilon Virginis Epsilon Virginis (ε Virginis, abbreviated Epsilon Vir, ε Vir), formally named Vindemiatrix , is a star in the zodiac constellation of Virgo. The apparent visual magnitude of this star is +2.8, making it the third-brightest member of ...

. Messier described M58 as a very faint nebula in Virgo which would disappear in the slightest amount of light he used to illuminate the

micrometer Micrometer can mean: * Micrometer (device), used for accurate measurements by means of a calibrated screw * American spelling of micrometre The micrometre ( international spelling as used by the International Bureau of Weights and Measures; ...

wires. This description was later contradicted by John Herschel's observations in 1833 where he described it as a very bright galaxy, especially towards the middle. Herschel's observations were also similar to the descriptions of both John Dreyer and

William Henry Smyth Admiral William Henry Smyth (21 January 1788 – 8 September 1865) was a Royal Navy officer, hydrographer, astronomer and numismatist. He is noted for his involvement in the early history of a number of learned societies, for his hydrographic ...

who said that M58 was a bright galaxy, mottled, irregularly round and very much brighter toward the middle.

Characteristics

Like many other spiral galaxies of the Virgo Cluster (e.g. Messier 90), Messier 58 is an

anemic galaxy An anemic galaxy is a type of spiral galaxy characterized by a low contrast between its spiral arms and its disk. Etymology The term was coined in 1976 by the Canadian astronomer Sidney van den Bergh to classify galaxies that are an interm ...

with low star formation activity concentrated within the galaxy's optical disk, and relatively little neutral hydrogen, also located inside its disk, concentrated in clumps, compared with other galaxies of similar morphological type. This deficiency of gas is believed to be caused by

interactions Interaction is action that occurs between two or more objects, with broad use in philosophy and the sciences. It may refer to: Science * Interaction hypothesis, a theory of second language acquisition * Interaction (statistics) * Interactions o ...

with Virgo's

intracluster medium In astronomy, the intracluster medium (ICM) is the superheated plasma that permeates a galaxy cluster. The gas consists mainly of ionized hydrogen and helium and accounts for most of the baryonic material in galaxy clusters. The ICM is heated to t ...

. Messier 58 has a low-luminosity

active galactic nucleus An active galactic nucleus (AGN) is a compact region at the center of a galaxy that has a much-higher-than-normal luminosity over at least some portion of the electromagnetic spectrum with characteristics indicating that the luminosity is not prod ...

, where a starburst may be present as well as a

supermassive black hole A supermassive black hole (SMBH or sometimes SBH) is the largest type of black hole, with its mass being on the order of hundreds of thousands, or millions to billions of times the mass of the Sun (). Black holes are a class of astronomical ob ...

with a mass of around 70 million solar masses. It is also one of the very few galaxies known to possess a UCNR (''ultra-compact nuclear ring''), a series of star-forming regions located in a very small ring around the center of the galaxy. This led to its being dubbed the "ring bearer galaxy" by the popular astronomy YouTube program "Deep Sky videos".

Supernovae

Two supernovae have been studied in the M58 galaxy. A

type II supernova A Type II supernova (plural: ''supernovae'' or ''supernovas'') results from the rapid collapse and violent explosion of a massive star. A star must have at least 8 times, but no more than 40 to 50 times, the mass of the Sun () to undergo th ...

dubbed as SN 1988A was discovered by Kaoru Ikeya,

Robert Evans Robert Evans (born Robert J. Shapera; June 29, 1930October 26, 2019) was an American film producer, studio executive, and actor, best known for his work on '' Rosemary's Baby'' (1968), ''Love Story'' (1970), ''The Godfather'' (1972), and ''Chi ...

, Christian Pollas and Shingo Horiguchi on January 18, 1988. It had an apparent magnitude of 13.5 found 40

arcseconds A minute of arc, arcminute (arcmin), arc minute, or minute arc, denoted by the symbol , is a unit of angular measurement equal to of one degree. Since one degree is of a turn (or complete rotation), one minute of arc is of a turn. The ...

south of its center. A

Type I supernova A supernova is a powerful and luminous explosion of a star. It has the plural form supernovae or supernovas, and is abbreviated SN or SNe. This transient astronomical event occurs during the last evolutionary stages of a massive star or whe ...

dubbed as SN 1989M was then found on June 28, 1989 by Kimeridze. This one had an apparent magnitude of 12.2 found 33 arcseconds north and 44 arcseconds west of its nucleus.

Notes

References

External links