The Large Magellanic Cloud (LMC) is a large and diffuse galaxy that resides in the southern hemisphere of the sky, barely visible to the naked eye between the constellations of Mensa and Dorado.1,2,3 The LMC shares its namesake with the Small Magellanic Cloud (SMC), both named for Ferdinand Magellan, who noted their existence on his journey around the world.1,3 This pair of galaxies shares a dust lane and interacts with each other through tidal forces.2,3
Structure of the Large Magellanic Cloud from 2MASS
The LMC morphology can be described as “an irregular barred spiral galaxy with three spiral arms and an extended outer loop of stellar material,” with a disk incline of 27° to the plane of the sky.4 While this information is readily evident, the overall structure of the LMC has been a constant subject of interest. In 2001, Martin D. Weinberg and Sergei Nikolaev explored this topic using UMass’s Two Micron All-Sky Survey (2MASS), a whole-sky coverage catalog of detectable galaxies and stars (finished in 2001).4 There are conflicting theories concerning the shape of the Large Magellanic Clouds; some researchers use the thin-disk model stemming from the kinematics of old long-period variables (LPVs) (Hughes, Wood, & Reid 1991) while others favor an evolving, tidal field induced strongly flared spheroidal-like distribution model with a spatially extended population(Weinberg 2000).4 These can be respectively explained as a thin exponential disk and a spherical power law model; both models are explored in detail to affirm previous studies’ data on the LMC structural parameters.4
The information from 2MASS was condensed into spatial density distribution maps with dif...
... middle of paper ...
...,” The Astronomical Journal, 92: 1068-1073, 1986 November.
Eduardo L. D. Bica, Henrique R. Schmitt, Carlos M. Dutra, Humberto L. Oliveira, “A revised and extended catalog og Magellanic system clusters, associations, and emission nebulae. II. The Large Magellanic Cloud,” The Astronomical Journal, 117: 238-246, 1999 January.
Knox S. Long, David J. Helfand, David A. Grabelsky, “A soft x-ray study of the Large Magellanic Cloud,” The Astrophysical Journal, 248: 925-944, 1981 September 15.
Y. Fukui, et al., “Molecular and atomic gas in the Large Magellanic Cloud. II. Three-dimensional correlation between CO and HI,” The Astrophysical Journal, 705: 144-155, 2009 November 1.
Robert A. Gruendl, You-Hua Chu, “High and intermediate mass young stellar objects in the Large Magellanic Cloud,” The Astrophysical Journal Supplement Series, 184: 172-197, 2009 September.
Need Writing Help?
Get feedback on grammar, clarity, concision and logic instantly.Check your paper »
- Clouds are usually the last things astronomers want to see in the sky, but for those who observe in the southern hemisphere there is a notable exception to that celestial rule. The Large and Small Magellanic Clouds are among the highlights of the southern night sky. Only within the last century were astronomers able to verify their true nature. Although they seem to be two foggy patches possibly torn from the Milky Way, astronomers believe these are actually small galaxies gravitationally bound to the Milky Way like moons around a giant planet.... [tags: essays research papers fc]
896 words (2.6 pages)
- The Clouds by Aristophanes, the Apology, and the Republic by Plato collectively demonstrate the hazardous relationship between the philosopher and the city. Each work reveals how Socrates’ method of dialectic inquiry and search for wisdom hindered Athens’ city structure and order. The tension between the city and the philosopher ultimately leads to Socrates’ death. Yet, the jury’s decision does not denounce Socrates as a pious individual. The decision merely represents Socrates’ unwillingness to conform to the Greek traditions and beliefs.... [tags: Socrates, Plato, Philosophy, The Clouds]
1364 words (3.9 pages)
- Throughout Aristophanes’ “Clouds” there is a constant battle between old and new. It makes itself apparent in the Just and Unjust speech as well as between father and son. Ultimately, Pheidippides, whom would be considered ‘new’, triumphs over the old Strepsiades, his father. This is analogous to the Just and Unjust speech. In this debate, Just speech represents the old traditions and mores of Greece while the contrasting Unjust speech is considered to be newfangled and cynical towards the old. While the defeat of Just speech by Unjust speech does not render Pheidippides the ability to overcome Strepsiades, it is a parallel that may be compared with many other instances in Mythology and real... [tags: Justice, Aristophanes, Clouds, ]
591 words (1.7 pages)
- Aside from all the prodigious number of Greek tragedies in history, stands a collection of Greek comedies which serve as humorous relief from the powerful overtone of the tragedy. These comedies were meant to ease the severity and seriousness sometimes associated with the Greek society. The ideas portrayed in the comedies, compared to the tragedies, were ridiculously far-fetched; however, although abnormal, these views are certainly worthy of attention. Throughout his comedy, The Clouds, Aristophanes, along with his frequent use of toilet humor, ridicules aspects of Greek culture when he destroys tradition by denouncing the importance of the gods' influence on the actions of mortals, and he... [tags: Greek Plays Aristophanes Clouds Essays]
1639 words (4.7 pages)
- Like low level clouds, the most basic classification of middle clouds also based on their elevation from earth’s surface. Middle level clouds exist between 2 km to 6 km above of the surface. Middle level clouds were classified into 3 types which is Altocumulus, Altostratus and Nimbostratus (Oliver, 2005). All of these clouds are occur in layers but it different in colour, precipitation and description of the clouds. Altocumulus can be found word widely at middle latitude. It consists of water and ice of crystal.... [tags: cirrus, cirrocumulus, cirrostratus]
736 words (2.1 pages)
- A paralegal new to the field has many options as far as career opportunities. One major decision for a paralegal pursuing a career at a law firm is whether or not to seek employment at a small or large firm. Taking into consideration some of the pros and cons of both small and large firms will give oneself an understanding on which to set their criteria for their final decision. Law firms with 25 or fewer attorneys are usually considered small law firms. Since small laws firms out number larger law firms, the majority of all paralegals work for small firms.... [tags: small, large, firm]
614 words (1.8 pages)
- ... Also both types of campuses vary in location so if a student wants to live in the city of in a rural area either type of campus would be available to them. Though both type of campuses have similarities and which is chosen by the student depends on which they feel more comfortable attending. Large college campuses have many benefits for students. There are a large number of majors and majors to choose from. Also there are a large number of extracurricular activities. For people who are interested in sports, large college campuses are usually the best choice.... [tags: size, large, small, social, majors, class]
550 words (1.6 pages)
- Socrates grew up at a time when Pericles was in power. Pericles was known as the first liberal politician who believed that all man deserved liberty regardless of their wealth and status. As an adult, Socrates was always mocked by society for his views. The people in his community originally thought of him in a comical way, like in the play Clouds that was written by Aristophanes. Socrates was depicted as a man "stalking the streets" and "rolling his eyes at anything unintelligent." By about 417 B.C.E., Aristophanes wrote another play about Socrates called Birds.... [tags: Plato, Socrates, Thirty Tyrants, Classical Athens]
1332 words (3.8 pages)
- There is a difference between cumuliform and stratiform clouds. All clouds are classified according to their altitude and their shape. Stratiform clouds form in layers and their air movement is mainly horizontal. If air movement is generally vertical, clouds grow upward and are cumuliform clouds. Stratiform and cumuliform clouds that appear at altitudes between 2000 and 7000 meters are called altostratus and altocumulus clouds. When they are above 7000 meters, they are called cirrostratus and cirrocumulus clouds.... [tags: formation, altitude, shape]
731 words (2.1 pages)
- CLOUDS Production The setting of the Clouds requires two doors in the skene, one representing Strepsiades's house and the other, the Thinkery, both in the city of Athens. The play begins with Strepsiades and Pheidippides sleeping in their beds. Since the ancient Greek theater had no curtain, these two men in their beds had to be carried out in full view of the audience by stagehands (probably slaves) and placed in front of one of the doors of the skene representing Strepsiades's house. The audience was no doubt expected to imagine that this was an indoor scene, because it was not usual for Greeks to sleep outside.... [tags: essays research papers]
2187 words (6.2 pages)