Results 71 to 80 of about 72,059 (265)

Turbulence in the Harassed Galaxy NGC 4254 [PDF]

, 2010
Galaxy harassment is an important mechanism for the morphological evolution of galaxies in clusters. The spiral galaxy NGC 4254 in the Virgo cluster is believed to be a harassed galaxy. We have analyzed the power spectrum of HI emission fluctuations from
Begum, Ayesha, Bharadwaj, Somnath, Chengalur, Jayaram N., Dutta, Prasun   +3 more
core   +1 more source

Automatic Detection of Galaxy Type From Datasets of Galaxies Image Based on Image Retrieval Approach

Scientific Reports, 2017
This paper presents a new approach for the automatic detection of galaxy morphology from datasets based on an image-retrieval approach. Currently, there are several classification methods proposed to detect galaxy types within an image.
Mohamed Abd El Aziz, I. M. Selim, Shengwu Xiong   +2 more
doaj   +1 more source

JWST Insight into a Lensed HST-dark Galaxy and Its Quiescent Companion at z = 2.58

The Astrophysical Journal Letters, 2023
Using the novel James Webb Space Telescope (JWST)/NIRCam observations in the A2744 field, we present a first spatially resolved overview of a Hubble Space Telescope (HST)-dark galaxy, spectroscopically confirmed at z = 2.58 with magnification μ ≈ 1.9 ...
Vasily Kokorev, Shuowen Jin, Georgios E. Magdis, Karina I. Caputi, Francesco Valentino, Pratika Dayal, Maxime Trebitsch, Gabriel Brammer, Seiji Fujimoto, Franz Bauer, Edoardo Iani, Kotaro Kohno, David Blánquez Sesé, Carlos Gómez-Guijarro, Pierluigi Rinaldi, Rafael Navarro-Carrera   +15 more
doaj   +1 more source

AM 1934-563: A giant spiral polar-ring galaxy in a triplet [PDF]

, 2005
We have observed the emission-line kinematics and photometry of a southern triplet of galaxies. The triplet contains a giant spiral galaxy AM 1934-563 which optical structure resembles a polar-ring galaxy: distorted spiral disk, seen almost edge-on, and ...
Alvensleben, Armus, Bekki, Bournaud, Bournaud, Bournaud, Bournaud, Brocca, Bushouse, Buta, Buta, Cox, de Grijs, de Jong, F. Bournaud, F. Combes, Fairall, Graham, Ho, Iodice, Iodice, Iodice, James, Kannappan, Karachentseva, Landolt, M. de Oliveira-Abans, M. Faúndez-Abans, Matthews, Moiseev, Monnet, Reshetnikov, Reshetnikov, Reshetnikov, Reshetnikov, Schlegel, Schweizer, Shalyapina, Tully, V. Reshetnikov, van Driel, Veilleux, Whitmore   +42 more
core   +2 more sources

UV–Vis Spectra of Carbonic Acid: Rationalizing Experimental Redshifts between Monomer and Bulk based on (H2CO3)n Calculations

ChemPhysChem, EarlyView.
In bulk carbonic acid (e.g., in interstellar icy dust grains) cluster formation produces two distinct UV‐Vis spectral features redshifted by ≈2 eV (25 nm) and by ≈5 eV (80 nm) compared to gas phase single molecule carbonic acid 's adiabatic ionization energy. Theory and experiment were used to investigate the origin of these shifts.
Dennis F. Dinu, Bastian Klein, Chaojiang Zhang, Radu A. Talmazan, Thomas Loerting, Hinrich Grothe, Ralf I. Kaiser, Maren Podewitz   +7 more
wiley   +1 more source

The Dynamics of the Spiral Galaxy M81 [PDF]

Symposium - International Astronomical Union, 1978
The spiral galaxy M81 is a challenging object for testing a density-wave theory. It is of large angular size and favourably inclined to the line of sight; radio observations of neutral atomic hydrogen showing well defined spiral arms with noncircular motions are available (Rots and Shane 1975), and there is evidence from surface photometry for density ...
openaire   +3 more sources

Stellar and dust emission profiles of IMEGIN galaxies [PDF]

EPJ Web of Conferences
We present a morphological analysis of a set of spiral galaxies from the NIKA2 Guaranteed Time Large Program, IMEGIN. We have fitted a single Sérsic model on a set of broadband images, from ultra-violet (UV) to millimeter (mm) wavelengths, using the ...
Nersesian A., Adam R., Ade P., Ajeddig H., André P., Artis E., Aussel H., Baes M., Beelen A., Benoît A., Berta S., Bing L., Bourrion O., Calvo M., Catalano A., De Petris M., Désert F.-X., Doyle S., Driessen E.F.C., Ejlali G., Gomez A., Goupy J., Hanser C., 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., Moyer-Anin A., Muñoz-Echeverría M., Pantoni L., Perotto L., Pisano G., Ponthieu N., Revéret V., Rigby A.J., Ritacco A., Romero C., Roussel H., Ruppin F., Schuster K., Sievers A., Tucker C., Xilouris E.M., Zylka R.   +52 more
doaj   +1 more source

Spiral arm crossings inferred from ridges in Gaia stellar velocity distributions

, 2018
The solar neighborhood contains disc stars that have recently crossed spiral arms in the Galaxy. We propose that boundaries in local velocity distributions separate stars that have recently crossed or been perturbed by a particular arm from those that ...
Anders, Friedrich, Carrillo, Ismael, Chiappini, Cristina, Hilmi, Tariq, Khalatyan, Arman, McMillan, Paul, Minchev, Ivan, Monari, Giacomo, Quillen, Alice C., Steinmetz, Matthias   +9 more
core   +1 more source

Kinematic Effects of Tidal Interaction on Galaxy Rotation Curves [PDF]

, 1998
We use self-consistent N-body models, in conjunction with models of test particles moving in galaxy potentials, to explore the initial effects of interactions on the rotation curves of spiral galaxies.
Benjamin C. Bromley, Combes F., Elizabeth J. Barton, Karachentsev I. D., Kuijken K., Margaret J. Geller, Negroponte J., Noguchi M.   +7 more
core   +2 more sources

Somato‐Cognitive Action Network in Focal Dystonia

Movement Disorders, EarlyView.
Abstract Background The central pathology causing idiopathic focal dystonia remains unclear. The recently identified somato‐cognitive action network (SCAN) has been implicated. Objective We tested whether the effector‐agnostic SCAN may constitute a central pathology shared across dystonia subtypes, whereas the effector‐specific regions in the primary ...
Yuchao Wang, Baothy Huynh, Jianxun Ren, Mo Chen, Wei Zhang, Dan Hu, Shasha Li, Hesheng Liu, Teresa J. Kimberley   +8 more
wiley   +1 more source