NGC 3184

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NGC 3184
NGC3184 3.6 5.8 8.0 microns spitzer.png
NGC 3184 as observed with the Spitzer Space Telescope, as part of the Spitzer Infrared Nearby Galaxy Survey. The blue colors represent the 3.6 micrometre emission from stars. The green and red colors represent the 5.8 and 8.0 micrometre emission from polycyclic aromatic hydrocarbons and possibly dustright
[ clarification needed ].
Observation data (J2000 epoch)
Constellation Ursa Major
Right ascension 10h 18m 17.0s [1]
Declination +41° 25′ 28″ [1]
Redshift 0.001975 [1]
Heliocentric radial velocity 592 ± 1 km/s [1]
Distance 39.8 ± 12 Mly
(12.2 ± 3.7 Mpc) [2]
Apparent magnitude  (V)10.4 [1]
Characteristics
Type SA(s)b: II
Apparent size  (V)7.4′ × 6.9′
Other designations
UGC 5557, PGC 30087

NGC 3184, the Little Pinwheel Galaxy, is a spiral galaxy approximately 40 million light-years away [2] in the constellation Ursa Major. Its name comes from its resemblance to the Pinwheel Galaxy. It has two HII regions named NGC 3180 [3] and NGC 3181. [4]

Contents

NGC 3184 houses a high abundance of heavy elements and SN 1999gi, a magnitude 14 Type II supernova detected on December 9, 1999. [5] [6] Other supernovae in NGC 3184 include 1921B (mag 13.5), 1921C (mag 11) and 1937F (mag 13.5). [6]

The blue color of its spiral arms comes mostly from relatively few bright young blue stars. The bright stars that highlight the arms were created in huge density waves that circle the center.

Structure

NGC 3184 has two prominent spiral arms. They have constant pitch angles, which makes them both symmetrical. [7]

SN 2010dn

On May 31, 2010, Koichi Itagaki detected a magnitude 17 optical transient 33" east and 61" north of the center of NGC 3184 at coordinates 10 18 19.89 +41 26 28.8. [8] This event may be an outbursting luminous blue variable (LBV) star. [9] Archival Hubble and Spitzer images of NGC 3184 seem to show no progenitor for optical transient SN 2010dn. [10] SN 2010dn is just like SN 2008S and NGC 300-OT. [9] On day 2, SN 2010dn had an unfiltered magnitude of 17.1, corresponding to a peak absolute magnitude of roughly -13.3. [9]

Supernovae in NGC 3184 [11]
Supernova apmag type
AT2019sfe20.6 ?
2016bkv14.8II
2010dn17.2LBV
1999gi14.0II
1937F13.5 ?
1921C11.0 ?
1921B13.5 ?
NGC 3184 showing supernova impostor 2010dn on June 02, 2010 2010dn-NGC3184-2010Jun01.jpg
NGC 3184 showing supernova impostor 2010dn on June 02, 2010
Galaxies with several Supernovae
Galaxynumber Declination
NGC 6946 (Fireworks)10+60
Arp 299 (NGC 3690 + IC 694)9+58
Messier 61 8+04
Messier 100 7+15
NGC 31847+41
Messier 83 (Southern Pinwheel)6−29
NGC 2207 and IC 2163 6−21
NGC 2276 6+85
Messier 66 5+12
Messier 101 (Pinwheel)5+54
NGC 309 5−09

See also

Related Research Articles

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<span class="mw-page-title-main">NGC 7331</span> Galaxy in the constellation Pegasus

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<span class="mw-page-title-main">NGC 2442 and NGC 2443</span> Spiral galaxy in the constellation Volans

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<span class="mw-page-title-main">NGC 4088</span> Galaxy in the constellation of Ursa Major

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<span class="mw-page-title-main">NGC 1309</span> Spiral galaxy in the constellation Eridanus

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<span class="mw-page-title-main">NGC 5907</span> Galaxy in the constellation Draco

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<span class="mw-page-title-main">NGC 7424</span> Galaxy in the constellation Grus

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<span class="mw-page-title-main">NGC 3938</span> Galaxy in the constellation Ursa Major

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<span class="mw-page-title-main">NGC 3021</span> Galaxy in the constellation Leo Minor

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<span class="mw-page-title-main">NGC 908</span> Spiral galaxy in the constellation Cetus

NGC 908 is an unbarred spiral galaxy in the constellation Cetus. It was discovered in 1786 by William Herschel. This galaxy is 56 million light years away from Earth. It is the main galaxy in the NGC 908 group, which also includes NGC 899, NGC 907, and IC 223.

<span class="mw-page-title-main">NGC 4490</span> Interacting galaxy in constellation Canes Venatici

NGC 4490, also known as the Cocoon Galaxy, is a barred spiral galaxy in the constellation Canes Venatici. William Herschel discovered it in 1788. The galaxy lies at a distance of 25 million light years from Earth. It interacts with its smaller companion NGC 4485 and as a result is a starburst galaxy. NGC 4490 and NGC 4485 are collectively known in the Atlas of Peculiar Galaxies as Arp 269. NGC 4490 is located 3/4° northwest of beta Canum Venaticorum and with apparent visual magnitude 9.8, can be observed with 15x100 binoculars. It is a member of the Herschel 400 Catalogue. It belongs in Canes Venatici galaxy cloud II.

<span class="mw-page-title-main">NGC 1255</span> Galaxy in the constellation Fornax

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<span class="mw-page-title-main">NGC 5468</span> Spiral galaxy in the constellation Virgo

NGC 5468 is an intermediate spiral galaxy located in the constellation Virgo. It is located at a distance of about 140 million light-years from Earth, which, given its apparent dimensions, means that NGC 5468 is about 110,000 light-years across. It was discovered by William Herschel on March 5, 1785.

References

  1. 1 2 3 4 5 "NASA/IPAC Extragalactic Database". Results for NGC 3184. Retrieved 2010-06-01.
  2. 1 2 "Distance Results for NGC 3184". NASA/IPAC Extragalactic Database. Retrieved 2010-06-01.
  3. ↑ "NASA/IPAC Extragalactic Database". Results for NGC 3180. Retrieved 2010-06-02.
  4. ↑ "NASA/IPAC Extragalactic Database". Results for NGC 3181. Retrieved 2010-06-02.
  5. ↑ Daniel W. E. Green (1999-12-10). "Supernova 1999gi in NGC 3184 (Circular No. 7329)". Central Bureau for Astronomical Telegrams. Retrieved 2010-06-02.
  6. 1 2 David Bishop. "1999gi (main page)". supernovae.net (International Supernovae Network). Retrieved 2010-06-02.
  7. ↑ Honig, Z.N.; Reid, M.J. (February 2015). "Characteristics of Spiral Arms in Late-type Galaxies". The Astrophysical Journal. 800 (1): 5387–5394. arXiv: 1412.1012 . Bibcode:2015ApJ...800...53H. doi:10.1088/0004-637X/800/1/53. PMID   53. S2CID   118666575 . Retrieved November 10, 2022.
  8. ↑ David Bishop. "Latest Supernovae". supernovae.net (International Supernovae Network). Retrieved 2010-06-02.
  9. 1 2 3 Smith, Nathan; Weidong, Li; Silverman, Jeffrey; Ganeshalingam, Mo; Filippenko, Alexei (2010). "Luminous Blue Variable eruptions and related transients: Diversity of progenitors and outburst properties". Monthly Notices of the Royal Astronomical Society. 415 (1): 773–810. arXiv: 1010.3718 . Bibcode:2011MNRAS.415..773S. doi:10.1111/j.1365-2966.2011.18763.x. S2CID   85440811.
  10. ↑ "ATEL 2655: HST/Spitzer limits on the progenitor of SN2010dn in NGC3184". Astronomers Telegram. 2010-06-01. Retrieved 2010-06-01.
  11. ↑ 2019sfe in NGC 3184 (David Bishop)
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