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Related papers: A Warp in the LMC Disk?

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We present a study of the three-dimensional (3D) structure of the Large Magellanic Cloud (LMC) using ~2.2 million red clump (RC) stars selected from the Survey of the MAgellanic Stellar History. To correct for line-of-sight dust extinction,…

The structural parameters of the disk of the Large Magellanic Cloud (LMC) are estimated.We used the red clump stars from the VI photometric data of the Optical Gravitational Lensing Experiment survey and from the Magellanic Cloud…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Smitha Subramanian , Annapurni Subramaniam

The structural parameters, like the inclination, i and the position angle of the line of nodes (PA_lon) of the disk of the Large Magellanic Cloud (LMC) are estimated using the JH photometric data of red clump stars from the Infrared Survey…

Astrophysics of Galaxies · Physics 2015-06-12 Smitha Subramanian , Annapurni Subramaniam

The Large and Small Magellanic Clouds (LMC and SMC) are the Milky Way's nearest interacting galaxy pair, offering a unique laboratory for studying tidal effects on galactic disks. Despite extensive survey efforts, the three-dimensional…

We present a detailed study of the viewing angles of the LMC disk plane. We find that our viewing direction differs considerably from the commonly accepted values, which has important implications for the structure of the LMC. The…

Astrophysics · Physics 2008-11-26 Roeland P. van der Marel , Maria-Rosa L. Cioni

Following an approach developed by Paczy\'nski & Stanek, we derive a distance to the Large Magellanic Cloud (LMC) by comparing red clump stars from the Hipparcos catalog with the red clump stars observed in two fields in the LMC that were…

Astrophysics · Physics 2009-10-30 K. Z. Stanek , D. Zaritsky , J. Harris

We present a new distance determination to the Large and Small Magellanic Clouds using the newly developed red clump stars method (Paczynski and Stanek 1998). This new, single-step, Hipparcos calibrated method seems to be one of the most…

Astrophysics · Physics 2007-05-23 A. Udalski , M. Szymanski , M. Kubiak , G. Pietrzynski , P. Wozniak , K. Zebrun

The average of 14 recent measurements of the distance to the Large Magellanic Cloud (LMC) implies a true modulus of 18.50 +- 0.02 mag, and demonstrates a trend in the past 2 years of convergence toward a standard value. The distance…

Astrophysics · Physics 2009-11-10 David R. Alves

We present results from a study of the distances and distribution of a sample of intermediate-age clusters in the Large Magellanic Cloud. Using deep near-infrared photometry obtained with ISPI on the CTIO 4m, we have measured the apparent…

Astrophysics · Physics 2009-06-23 A. J. Grocholski , A. Sarajedini , K. A. G. Olsen , G. P. Tiede , C. L. Mancone

The bar of the Large Magellanic Cloud (LMC) is one of the prominent, but controversial feature regarding its location with respect to the disk of the LMC. In order to study the relative location of the bar with respect to the disk, we…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Annapurni Subramaniam , Smitha Subramanian

The Hipparcos I-band calibration of horizontal-branch red clump giants as standard candles has lead to controversial results for the distance to the Large Magellanic Cloud (LMC). In an attempt to properly ascertain the corrections for…

Astrophysics · Physics 2009-11-07 David R. Alves , Marina Rejkuba , Dante Minniti , Kem H. Cook

We used the red clump stars from the photometric data of the Optical Gravitational Lensing Experiment(OGLE II) survey and the Magellanic Cloud Photometric Survey (MCPS) for both the Clouds to estimate the depth.The observed dispersion in…

Astrophysics · Physics 2011-07-21 Smitha Subramanian , Annapurni Subramaniam

The zero point of the reddening toward the Large Magellanic Cloud (LMC) has been the subject of some dispute. Its uncertainty propagates as a systematic error for methods which measure the extragalactic distance scale through knowledge of…

Solar and Stellar Astrophysics · Physics 2021-04-14 David M. Nataf , Santi Cassisi , Luca Casagrande , Wenlong Yuan , Adam G. Riess

We present an analysis of the 3-D structure of the Magellanic Clouds, using period-luminosity (P-L) relations of pulsating red giants in the OGLE-II sample. By interpreting deviations from the mean P-L relations as distance modulus…

Astrophysics · Physics 2009-11-10 P. Lah , L. L. Kiss , T. R. Bedding

Warps are vertical distortions of the stellar or gaseous disks of galaxies. One of the proposed scenarios for the formation of warps involves tidal interactions among galaxies. A recent study identified a stellar warp in the outer regions…

Astrophysics of Galaxies · Physics 2022-10-12 S. Saroon , S. Subramanian

This paper reports the star count predictions of warped and flaring models of the outer Milky Way disk. These have been suggested as possible locations of the lenses responsible for the microlensing events towards the Large Magellanic Cloud…

Astrophysics · Physics 2009-10-31 Geza Gyuk , Chris Flynn , N. Wyn Evans

We present Washington C, T1 CCD photometry of 21 fields located in the northern part of the Large Magellanic Cloud (LMC), and spread over a region of more than 2.52 degrees approximately 6 degrees from the bar. The surveyed areas were…

Astrophysics · Physics 2009-10-31 A. E. Piatti , D. Geisler , E. Bica , J. J. Claria , J. F. C. Santos , A. Sarajedini , H. Dottori

We present a detailed investigation of the Large Magellanic Cloud (LMC) disk using classical Cepheids. Our analysis is based on optical (I,V; OGLE-IV), near-infrared (NIR: J,H,Ks) and mid-infrared (MIR: w1; WISE) mean magnitudes. By…

Astrophysics of Galaxies · Physics 2016-12-07 L. Inno , G. Bono , N. Matsunaga , G. Fiorentino , M. Marconi , B. Lemasle , R. da Silva , I. Soszyński , A. Udalski , M. Romaniello , H. -W. Rix

We examine the morphology of the color-magnitude diagram (CMD) for core helium-burning (red clump) stars to test the recent suggestion by Zaritsky & Lin (1997) that an extension of the red clump in the Large Magellanic Cloud (LMC) toward…

Astrophysics · Physics 2009-10-30 J. P. Beaulieu , Penny D. Sackett

Galaxy interactions distort the distribution of baryonic matter and can affect star formation. The nearby Magellanic Clouds are a prime example of an ongoing galaxy interaction process. Here we use the intermediate-age ($\sim1$-$10$ Gyr)…

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