Results 31 to 40 of about 161 (110)

Cosmology and Fundamental Physics with the Euclid Satellite [PDF]

Living Reviews in Relativity, 2013
Luca Amendola, Stephen Appleby, Tessa Baker   +2 more
exaly   +2 more sources

A Cloud-Scale View of the Molecular Gas Disk in the Whirlpool Galaxy and Beyond [PDF]

EPJ Web of Conferences, 2022
The nearby galaxy M51 (also known as the Whirlpool galaxy) hosts an iconic grand-design spiral pattern and both IRAM facilities conducted the first cloud-scale (∼50 pc resolution) survey of the molecular gas reservoir across a the disk of a massive star ...
Schinnerer Eva, Pety Jérôme, Bešlić Ivana, Eibensteiner Cosima, Stuber Sophia, Leroy Adam, Hughes Annie, Usero Antonio, Bigiel Frank   +8 more
doaj   +1 more source

Dust Emission in Galaxies at Millimeter Wavelengths: Cooling of star forming regions in NGC6946 [PDF]

EPJ Web of Conferences, 2022
Interstellar dust plays an important role in the formation of molecular gas and the heating and cooling of the interstellar medium. The spatial distribution of the mm-wavelength dust emission from galaxies is largely unexplored. The NIKA2 Guaranteed Time
Ejlali G., Adam R., Ade P., Ajeddig H., André P., Artis E., Aussel H., Beelen A., Benoît A., Berta S., Bing L., Bourrion O., Calvo M., Catalano A., de Looze I., De Petris M., Désert F.-X., Doyle S., Driessen E.F. C., Galametz M., Galliano F., Gomez A., Goupy J., Jones A.P., Hughes A., Katsioli S., Kéruzoré F., Kramer C., Ladjelate B., Lagache G., Leclercq S., Lestrade J.-F., Macías-Pérez J.-F., Madden S.C., Maury A., Mauskopf P., Mayet F., Monfardini A., Muñoz-Echeverría M., Nersesian A., Perotto L., Pisano G., Ponthieu N., Revéret V., Rigby A.J., Ritacco A., Romero C., Roussel H., Ruppin F., Schuster K., Shu S., Sievers A., Smith M. W. S. L., Tabatabaei F. S., Tucker C., Xilouris E.M., Zylka R.   +56 more
doaj   +1 more source

PHANGS–JWST First Results: Multiwavelength View of Feedback-driven Bubbles (the Phantom Voids) across NGC 628

The Astrophysical Journal Letters, 2023
We present a high-resolution view of bubbles within the Phantom Galaxy (NGC 628), a nearby (∼10 Mpc), star-forming (∼2 M _⊙ yr ^−1 ), face-on ( i ∼ 9°) grand-design spiral galaxy.
Ashley. T. Barnes, Elizabeth J. Watkins, Sharon E. Meidt, Kathryn Kreckel, Mattia C. Sormani, Robin G. Treß, Simon C. O. Glover, Frank Bigiel, Rupali Chandar, Eric Emsellem, Janice C. Lee, Adam K. Leroy, Karin M. Sandstrom, Eva Schinnerer, Erik Rosolowsky, Francesco Belfiore, Guillermo A. Blanc, Médéric Boquien, Jakob den Brok, Yixian Cao, Mélanie Chevance, Daniel A. Dale, Oleg V. Egorov, Cosima Eibensteiner, Kathryn Grasha, Brent Groves, Hamid Hassani, Jonathan D. Henshaw, Sarah Jeffreson, María J. Jiménez-Donaire, Benjamin W. Keller, Ralf S. Klessen, Eric W. Koch, J. M. Diederik Kruijssen, Kirsten L. Larson, Jing Li, Daizhong Liu, Laura A. Lopez, Eric J. Murphy, Lukas Neumann, Jérôme Pety, Francesca Pinna, Miguel Querejeta, Florent Renaud, Toshiki Saito, Sumit K. Sarbadhicary, Amy Sardone, Rowan J. Smith, Sophia K. Stuber, Jiayi Sun, David A. Thilker, Antonio Usero, Bradley C. Whitmore, Thomas G. Williams   +53 more
doaj   +1 more source

PHANGS–JWST First Results: A Combined HST and JWST Analysis of the Nuclear Star Cluster in NGC 628

The Astrophysical Journal Letters, 2023
We combine archival Hubble Space Telescope and new James Webb Space Telescope imaging data covering the ultraviolet to mid-infrared regime to morphologically analyze the nuclear star cluster (NSC) of NGC 628, a grand-design spiral galaxy.
Nils Hoyer, Francesca Pinna, Albrecht W. H. Kamlah, Francisco Nogueras-Lara, Anja Feldmeier-Krause, Nadine Neumayer, Mattia C. Sormani, Médéric Boquien, Eric Emsellem, Anil C. Seth, Ralf S. Klessen, Thomas G. Williams, Eva Schinnerer, Ashley. T. Barnes, Adam K. Leroy, Silvia Bonoli, J. M. Diederik Kruijssen, Justus Neumann, Patricia Sánchez-Blázquez, Daniel A. Dale, Elizabeth J. Watkins, David A. Thilker, Erik Rosolowsky, Frank Bigiel, Kathryn Grasha, Oleg V. Egorov, Daizhong Liu, Karin M. Sandstrom, Kirsten L. Larson, Guillermo A. Blanc, Hamid Hassani   +30 more
doaj   +1 more source

Evidence for small halos in grand design spiral galaxies

The Astrophysical Journal, 1990
Les courbes de rotation de 41 galaxies spirales de differents types sont comparees. Il est montre que les galaxies ayant deux bras longs et symetriques tendent a avoir des courbes de rotation exterieures tombantes alors que les galaxies ayant des bras multiples ou des bras floconneux courts ont plutot des courbes de rotation presques plates ou s ...
Debra Meloy Elmegreen, Bruce G. Elmegreen   +1 more
openaire   +2 more sources

On the relative frequency of flocculent and grand design spiral structures in barred galaxies

The Astrophysical Journal, 1989
The bars in late-type spiral galaxies (SBbc to SBm and SABbc to SABm) show little correlation with grand design spiral structure, unlike the bars in early-type galaxies. This is further evidence for two different types of bars in the SB morphological class, and two different types of ovals in the SAB class.
Debra Meloy Elmegreen, Bruce G. Elmegreen   +1 more
openaire   +2 more sources

A New Statistical Analysis of the Morphology of Spiral Galaxies

The Astronomical Journal
Morphology is the starting point for understanding galaxies. Elmegreen et al. classified spiral galaxies into flocculent, multiple-arm, and grand-design galaxies based on the regularity of their spiral arm structure.
Junye Wei, Ye Xu, Zehao Lin, Chaojie Hao, Yingjie Li, Dejian Liu, Shuaibo Bian   +6 more
doaj   +1 more source

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   +1 more source

The Coherent Magnetic Field of the Milky Way

The Astrophysical Journal
We present a suite of models of the coherent magnetic field of the Galaxy based on new divergence-free parametric functions describing the global structure of the field.
Michael Unger, Glennys R. Farrar
doaj   +1 more source