RX J1347.5−1145

RX J1347.5–1145 is one of the most massive galaxy clusters known discovered in X-rays with ROSAT.[2] As a result, it is also one of the most X-ray-luminous because of its hot gas content. [3] The object resides roughly 5 billion light-years away from the Solar System in the constellation of Virgo. Redshift was noted as z=0.451 with an X-ray luminosity of 1045 ergs s−1 in a paper from 2002.[4] In 2013, one study found eight cases of the same object resulting from the intense gravitational bending of light, which makes it possible to identify a series of remote galaxies located inside the galaxy cluster with calculations from the photometric method between 5.5 and 7.5.[5] That study made use of data from Cluster Lensing and Supernova survey with Hubble (CLASH) as well as other sources.[5] The colors in the galaxy cluster are known to correspond with the level of brightness, or the number of electrons trapped in the examined wavelength range of the cluster, with the colors Red, Orange, and yellow as light, Blue-Green, Green-Medium-Light, Blue, and Violet dark, and is considered one of the brightest objects that is known by X-ray.[6]

RX J1347.5-1145
Thermal Measurement of the Sunjajew-Seldowitsch effect in the picture that was taken by the Atacama Large Millimeter Array taken in chile showing the blue and violet hues. The Sunjajew-Seldowitsch effects were taken as the first Thermal Measurements.
Observation data (Epoch )
Constellation(s)Virgo
Right ascension 13h 47m 33.5s[1]
Declination−11° 45′ 42″[1]
Redshiftz = 0.451[1]
Distance
(co-moving)		5 billion ly (1.533 Gpc)
X-ray luminosity1×1045 ergs
RX J1347.5-1145 in a composite image, which was taken by the Hubble Space Telescope in a optical and X-ray version of the image.

The brightest galaxy inside RX J1347.5-1145 is known to be GALEX J134730.-114509 elliptical trainer. The temperature along with the entropy maps are known to show cool, entropy gasses trailing the subcluster in a southwestern trail, which is known to be consistent with core shredding. [7] There were also conclusions of the overall gas density, temperature, and metallicity are combined together into a agreement, along with a hot intracluster medium with its extension in the southeast along with a little indication of two cD galaxies located within the cluster.[8]

Radio observations

The first radio observations were taken in the years of 1999 and 2001 of the SZ effect located inside RX J1347.5-1145, along with the higher angular resolution (at approximately 150 GHz) which showed the stronger signal along with the enchantment, which is known to be located southeast of the cluster's center, the same location as the surface brightness extension viewed by X-Rays. Since the SZ intensity is propotional to the integrated gas pressure combined along with the light of sight, the strong SZ signal was interpreted due to too much hot gas in the cluster, which was probably caused by the merging of a subcluster along with the primary cluster. The presecne (kT ≥ 15 keV) gas in the southeast portion of the cluster has been cited, reported, and confirmed by Chandra.[9]

X-Ray data analysis

The galaxy cluster was observed for over 80 kiloseconds (~22 hours) over three Chandra observation windows, which the first two observations were in perspective by ACIS-S and the third one by ACIS-I. The glare projection was known to be done using the 2.5-7 keV and the 9.0-12 keV bands, which excluded the regions that were known to contain point sources and cluster emission.[10]

Proper estimation of the X-Ray background in the galaxy cluster is known to be critical for spectral arrays of faint, extended emission from the cluster, along with the use of the blank sky data sets from the Chandra calibration Database. Overall background normalization was used to measure the ratio of the count rate of high energy frequences (which is known to be around 9-12 keV).[11]


gollark: Anyway, I've already generated my entry for the next round, so get fearing.
gollark: I did. It was obviously you.
gollark: It is VERY annoying that the last one has just four (4) integers in it and not five (5).
gollark: See, if you just iterate through all possible programs in some language, and see which one first produces those outputs given those inputs, you will have a solution.
gollark: Actually, I didn't.

References
  1. "RX J1347.5-1145". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-06-13.
  2. Johnson, Ryan E.; Zuhone, John; Jones, Christine; Forman, William R.; Markevitch, Maxim (2012-05-09). "SLOSHING GAS IN THE CORE OF THE MOST LUMINOUS GALAXY CLUSTER RXJ1347.5-1145". The Astrophysical Journal. 751 (2): 95. arXiv:1106.3489. doi:10.1088/0004-637x/751/2/95. ISSN 0004-637X.
  3. Dark Matter and Baryons in the X-Ray Luminous Merging Galaxy Cluster RX J1347.5–1145
  4. S. Ravindranath and L. C. Ho - Magellan Spectroscopy of the Galaxy Cluster RX J1347.5-1145: Redshift Estimates for the Gravitationally Lensed Arcs (2002)
  5. F. Köhlinger and R.W. Schmidt - Strong lensing in RX J1347.5-1145 revisited (2013)
  6. "www.zivilisationen.de - Galaxienhaufen". zivilisationen.de (in German). Retrieved 2020-05-09.
  7. Kreisch, C. D.; Machacek, M. E.; Jones, C.; Randall, S. W. (2016-10-10). "Merger Hydrodynamics of the Luminous Cluster RXJ1347.5-1145". The Astrophysical Journal. 830 (1): 39. arXiv:1607.04674. doi:10.3847/0004-637X/830/1/39. ISSN 1538-4357.
  8. Johnson, Ryan E.; Zuhone, John; Jones, Christine; Forman, William R.; Markevitch, Maxim (2012-05-09). "SLOSHING GAS IN THE CORE OF THE MOST LUMINOUS GALAXY CLUSTER RXJ1347.5-1145". The Astrophysical Journal. 751 (2): 95. arXiv:1106.3489. doi:10.1088/0004-637x/751/2/95. ISSN 0004-637X.
  9. Johnson, Ryan E.; Zuhone, John; Jones, Christine; Forman, William R.; Markevitch, Maxim (2012-05-09). "SLOSHING GAS IN THE CORE OF THE MOST LUMINOUS GALAXY CLUSTER RXJ1347.5-1145". The Astrophysical Journal. 751 (2): 95. arXiv:1106.3489. doi:10.1088/0004-637x/751/2/95. ISSN 0004-637X.
  10. Johnson, Ryan E.; Zuhone, John; Jones, Christine; Forman, William R.; Markevitch, Maxim (2012-05-09). "SLOSHING GAS IN THE CORE OF THE MOST LUMINOUS GALAXY CLUSTER RXJ1347.5-1145". The Astrophysical Journal. 751 (2): 95. arXiv:1106.3489. doi:10.1088/0004-637x/751/2/95. ISSN 0004-637X.
  11. Johnson, Ryan E.; Zuhone, John; Jones, Christine; Forman, William R.; Markevitch, Maxim (2012-05-09). "SLOSHING GAS IN THE CORE OF THE MOST LUMINOUS GALAXY CLUSTER RXJ1347.5-1145". The Astrophysical Journal. 751 (2): 95. arXiv:1106.3489. doi:10.1088/0004-637x/751/2/95. ISSN 0004-637X.


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