Results 1 to 10 of about 17,483 (259)

Young massive star clusters in M51 [PDF]

Mon.Not.Roy.Astron.Soc. 319 (2000) 893, 2000
A search for young massive star clusters (YMCs) in the nearby face-on spiral galaxy M51 (NGC 5194) has been carried out using UBV CCD images from the prime focus camera on the Lick 3 meter Shane telescope. The YMC population is found to be quite rich with a specific U-band luminosity T_L(U) = 1.4, consistent with the high current star formation rate of
S. S. Larsen
arxiv   +7 more sources

Simulations of the grand design galaxy M51: a case study for analysing tidally induced spiral structure [PDF]

, 2009
We present hydrodynamical models of the grand design spiral M51 (NGC 5194), and its interaction with its companion NGC 5195. Despite the simplicity of our models, our simulations capture the present day spiral structure of M51 remarkably well, and even reproduce details such as a kink along one spiral arm, and spiral arm bifurcations.
Clare L. Dobbs, Ch. Theis, J. E. Pringle, Matthew R. Bate   +3 more
arxiv   +8 more sources

Kinematics of Spiral‐Arm Streaming in M51 [PDF]

The Astrophysical Journal, 2007
We use CO and H alpha velocity fields to study the gas kinematics in the spiral arms and interarms of M51 (NGC 5194), and fit the 2D velocity field to estimate the radial and tangential velocity components as a function of spiral phase (arm distance). We
Rahul Shetty, S. N. Vogel, Eve C. Ostriker, Peter Teuben   +3 more
core   +7 more sources

Possible Periodic Dips in the Pulsating Ultraluminous X-ray Source M51 ULX-7 [PDF]

, 2021
We report the discovery of possible periodic X-ray dips in a pulsating ultraluminous X-ray source, M51 ULX-7, with the archival Changra observations. With ~20 days of monitoring in the superorbital descending state, we discovered three dips with separations of ~2 and ~8 days via the Bayesian block technique.
Chin‐Ping Hu, Yoshihiro Ueda, Teruaki Enoto   +2 more
arxiv   +5 more sources

Properties of Resolved Star Clusters in M51 [PDF]

The Astronomical Journal, 2005
We present a study of compact star clusters in the nearby pair of interacting galaxies NGC 5194/95 (M51), based on multifilter Hubble Space Telescope WFPC2 archival images. We have detected ~400 isolated clusters.
Myung Gyoon Lee, Rupali Chandar, Bradley C. Whitmore   +2 more
core   +6 more sources

Morphology and Kinematics of the Gas in M51: How Interaction with NGC 5195 Has Molded the Structure of Its Arms

The Astrophysical Journal
The Whirlpool Galaxy is a well-studied grand design galaxy with two major spiral arms, and a large satellite NGC 5195. The arms both show long uniform sections with perturbations (“kinks” or sharp turns) in specific regions.
Joan Font, John E. Beckman, Benoît Epinat, Clare L. Dobbs, Miguel Querejeta   +4 more
doaj   +3 more sources

Subarcsecond-resolution Imaging of M51 with the International LOFAR Telescope [PDF]

The Astrophysical Journal, 2023
We present an International LOFAR Telescope (ILT) subarcsecond-resolution image of the nearby galaxy M51 with a beam size of 0.″436 × 0.″366 and rms of 46 μ Jy. We compare this image with a European VLBI Network study of M51 and discuss the supernovae in
Deepika Venkattu, Peter Lundqvist, Miguel Pérez Torres, Leah Morabito, Javier Moldón, John Conway, Poonam Chandra, Cyril Tasse   +7 more
doaj   +2 more sources

HII Region Luminosity Function of the Interacting Galaxy M51 [PDF]

2011, ApJ, 735, 75, 2011
We present a study of HII regions in M51 using the Hubble Space Telescope ACS images taken as part of the Hubble Heritage Program. We have catalogued about 19,600 HII regions in M51 with Ha luminosity in the range of L = 10^{35.5} erg/s to 10^{39.0} erg/s.
Beckman, Bresolin, Buckalew, Calzetti, Carranza, Cepa, Egusa, Elmegreen, Gutierrez, Gutierrez, Hwang, Hwang, Jong Hwan Lee, Kaleida, Maeder, McKee, Mutchler, Myung Gyoon Lee, Narae Hwang, Oey, Oey, Paladini, Petit, Pleuss, Rozas, Schlegel, Scoville, Thilker, Thilker, van der Hulst, Walterbos, Weidner, Wilcots, Youngblood   +33 more
arxiv   +3 more sources

A Catalogue of M51 type Galaxy Associations [PDF]

Astrophysics and Space Science, 2008
A catalog of 232 apparently interacting galaxy pairs of the M51 class is presented. Catalog members were identified from visual inspection of mult-band images in the IRSA archive. The major findings in the compilation of this catalog are (1) A surprisingly low number of the main galaxies in M51 systems are early type spirals and barred spirals.
Russell, David, Orr, Harley, Jokimaki, Ari, Jokimäki, Ari, Orr, Harley, Russell, David   +5 more
arxiv   +5 more sources

The Magnetized Disk-Halo Transition Region of M51 [PDF]

A&A 642, A118 (2020), 2018
An excellent laboratory for studying large scale magnetic fields is the grand de- sign face-on spiral galaxy M51. Due to wavelength-dependent Faraday depolarization, linearly polarized synchrotron emission at different radio frequencies gives a picture of the galaxy at different depths: Observations at L-band (1-2 GHz) probe the halo region while at C-
Basu, A., Beck, R., Fletcher, A., Haverkorn, M., Kierdorf, M., Mao, S. A., Ott, J., Tabatabaei, F.   +7 more
arxiv   +3 more sources