Results 31 to 40 of about 11,151 (256)

3.55 keV X-ray line signal from excited dark matter in radiative neutrino model

Physics Letters B, 2014
We study an exciting dark matter scenario in a radiative neutrino model to explain the X-ray line signal at 3.55 keV recently reported by XMN-Newton X-ray observatory using data of various galaxy clusters and Andromeda galaxy.
Hiroshi Okada, Takashi Toma
doaj   +1 more source

The Detailed Star Formation History in the Spheroid, Outer Disk, and Tidal Stream of the Andromeda Galaxy [PDF]

, 2006
Using the Advanced Camera for Surveys on the Hubble Space Telescope, we have obtained deep optical images reaching stars well below the oldest main sequence turnoff in the spheroid, tidal stream, and outer disk of the Andromeda Galaxy.
Allen V. Sweigart, Alvio Renzini, Ed Smith, Fardal M. A., Geehan J. J., Henry C. Ferguson, Klypin A., Larson R. B., Puragra Guhathakurta, R. Michael Rich, Randy A. Kimble, Thomas M. Brown, van den Bergh S., Walterbos R. A. M., Weil M. L.   +14 more
core   +2 more sources

The Least Action Principle And The Spin Of Galaxies In The Local Group [PDF]

, 1993
Using Peebles' least action principle, we determine trajectories for the galaxies in the Local Group and the more massive galaxies in the Local Neighbourhood.
Dunn, A. M., Laflamme, R.
core   +2 more sources

DESI Observations of the Andromeda Galaxy: Revealing the Immigration History of Our Nearest Neighbor

The Astrophysical Journal, 2023
We present Dark Energy Spectroscopic Instrument (DESI) observations of the inner halo of M31, which reveal the kinematics of a recent merger—a galactic immigration event—in exquisite detail.
Arjun Dey, Joan R. Najita, Sergey E. Koposov, J. Josephy-Zack, Gabriel Maxemin, Eric F. Bell, C. Poppett, E. Patel, L. Beraldo e Silva, A. Raichoor, D. Schlegel, D. Lang, A. Meisner, Adam D. Myers, J. Aguilar, S. Ahlen, C. Allende Prieto, D. Brooks, A. P. Cooper, K. S. Dawson, A. de la Macorra, P. Doel, A. Font-Ribera, Juan García-Bellido, S. Gontcho A Gontcho, J. Guy, K. Honscheid, R. Kehoe, T. Kisner, A. Kremin, M. Landriau, L. Le Guillou, Michael E. Levi, T. S. Li, Paul Martini, R. Miquel, J. Moustakas, Jundan Nie, N. Palanque-Delabrouille, F. Prada, E. F. Schlafly, Ray M. Sharples, Gregory Tarlé, Yuan-Sen Ting, L. Tyas, M. Valluri, Risa H. Wechsler, H. Zou   +47 more
doaj   +1 more source

Ongoing Galactic Accretion: Simulations and Observations of Condensed Gas in Hot Halos [PDF]

, 2007
Ongoing accretion onto galactic disks has been recently theorized to progress via the unstable cooling of the baryonic halo into condensed clouds. These clouds have been identified as analogous to the High-Velocity Clouds (HVCs) observed in HI in our ...
Braun R., J. E. G. Peek, Jesper Sommer‐Larsen, M. E. Putman, Muller C. A., Rocha-Pinto H. J., Wakker B. P., White S. D. M.   +7 more
core   +1 more source

Dynamical Mass Estimates for the Halo of M31 from Keck Spectroscopy [PDF]

, 2000
The last few months have seen the measurements of the radial velocities of all of the dwarf spheroidal companions to the Andromeda galaxy (M31) using the spectrographs (HIRES and LRIS) on the Keck Telescope.
Eva K. Grebel, Grebel E. K., Karachentsev I. D., Mark I. Wilkinson, N. Wyn Evans, Puragra Guhathakurta, Steven S. Vogt, Tikhonov N. A.   +7 more
core   +2 more sources

The microbiologist's guide to metaproteomics [PDF]

Imeta
Metaproteomics within the multi‐omics framework provides a comprehensive view of microbial systems by identifying proteins, quantifying their levels, detecting posttranslational modifications (PTMs), mapping protein–protein interactions (PPIs), and localizing proteins.
Van Den Bossche T, Armengaud J, Benndorf D, Blakeley‐Ruiz J, Brauer M, Cheng K, Creskey M, Figeys D, Grenga L, Griffin T, Henry C, Hettich R, Holstein T, Jagtap P, Jehmlich N, Kim J, Kleiner M, Kunath B, Malliet X, Martens L, Mehta S, Mesuere B, Ning Z, Tanca A, Uzzau S, Verschaffelt P, Wang J, Wilmes P, Zhang X, Zhang X, Li L.   +30 more
europepmc   +2 more sources

Systems biology of responses to simultaneous copper and iron deficiency in Arabidopsis

The Plant Journal, Volume 103, Issue 6, Page 2119-2138, September 2020., 2020
Summary Plant responses to coincident nutrient deficiencies cannot be predicted from the responses to individual deficiencies. Although copper (Cu) and iron (Fe) are essential micronutrients for plant growth that are often and concurrently limited in soils, the combinatorial response to Cu‐Fe deficiency remains elusive.
Antoni Garcia‐Molina, Giada Marino, Martin Lehmann, Dario Leister   +3 more
wiley   +1 more source

The Herschel Exploitation of Local Galaxy Andromeda (HELGA). I: Global far-infrared and sub-mm morphology [PDF]

, 2012
We have obtained Herschel images at five wavelengths from 100 to 500 micron of a ~5.5x2.5 degree area centred on the local galaxy M31 (Andromeda), our nearest neighbour spiral galaxy, as part of the Herschel guaranteed time project "HELGA".
A. Boselli, A. R. Cooray, A. Remy, Aniano, B. O’Halloran, Bajaja, Barmby, Beaton, Bendo, Bernard, Block, Braine, Braun, Braun, C. D. Wilson, C. Waelkens, Chemin, Corbelli, Cuillandre, D. Clements, D. Thilker, Davies, Devereux, Draine, Draine, Draine, Eales, Edmunds, F. Galliano, G. Gentile, G. J. Bendo, G. P. Ford, Galliano, Gil de Paz, Gordon, Gordon, Griffin, Griffin, H. L. Gomez, H. Roussel, Haas, Habing, Hauser, Hildebrand, I. De Looze, J. A. D. L. Blommaert, J. Fritz, J. Kirk, J. Roman Duval, J. Verstappen, K. D. Gordon, Kramer, L. Cortese, L. Spinoglio, Leroy, Li, M. Baes, M. Boquien, M. J. Page, M. Vaccari, M. W. L. Smith, McConnachie, McConnachie, Meixner, Molinari, Montalto, Nieten, Odenwald, Pascale, Pietsch, Pilbratt, Poglitsch, R. Braun, S. A. Eales, S. C. Madden, Smith, Sofue, Stansberry, Strong, Swinyard, Tabatabaei, Thilker, Thilker, Trundle, V. Lebouteiller, W. K. Gear, Walterbos, Walterbos, Westmeier, Xu, Yin   +90 more
core   +5 more sources

A comprehensive study of Cepheid variables in the Andromeda galaxy. Period distribution, blending and distance determination [PDF]

, 2007
Extragalactic Cepheids are the basic rungs of the cosmic distance scale. They are excellent standard candles, although their luminosities and corresponding distance estimates can be affected by the particular properties of the host galaxy. Therefore, the
Alcock, Antonello, Antonello, Antonello, Baade, Baade, Barnes, Beaulieu, Becker, Benedict, Bresolin, C. Jordi, Cotton, F. Vilardell, Feast, Fernie, Fitzpatrick, Fitzpatrick, Fliri, Freedman, Gibson, Hubble, I. Ribas, Kennicutt, Kennicutt, Landolt, Leavitt, Macri, Mochejska, Mochejska, Ngeow, Petersen, Pietrzynski, Ribas, Saha, Sandage, Schwarzenberg-Czerny, Simien, Udalski, Udalski, van Leeuwen, Vilardell, Wozniak, Zakrzewski   +43 more
core   +1 more source