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We present exoplanets as new targets to discover Dark Matter (DM). Throughout the Milky Way, DM can scatter, become captured, deposit annihilation energy, and increase the heat flow within exoplanets. We estimate upcoming infrared telescope…

High Energy Physics - Phenomenology · Physics 2023-04-26 Rebecca K. Leane , Juri Smirnov

The dwarf spheroidal galaxy Draco has long been considered likely to be one of the brightest point sources of gamma-rays generated through dark matter annihilations. Recent studies of this object have found that it remains largely intact…

High Energy Physics - Phenomenology · Physics 2008-11-26 Lars Bergstrom , Dan Hooper

Satellite galaxies of the Milky Way are among the most promising targets for dark matter searches in gamma rays. We present a search for dark matter consisting of weakly interacting massive particles, applying a joint likelihood analysis to…

High Energy Astrophysical Phenomena · Physics 2012-08-27 LAT Collaboration , M. Ackermann , M. Ajello , A. Albert , W. B. Atwood , L. Baldini , J. Ballet , G. Barbiellini , D. Bastieri , K. Bechtol , R. Bellazzini , B. Berenji , R. D. Blandford , E. D. Bloom , E. Bonamente , A. W. Borgland , J. Bregeon , M. Brigida , P. Bruel , R. Buehler , T. H. Burnett , S. Buson , G. A. Caliandro , R. A. Cameron , B. Canadas , P. A. Caraveo , J. M. Casandjian , C. Cecchi , E. Charles , A. Chekhtman , J. Chiang , S. Ciprini , R. Claus , J. Cohen-Tanugi , J. Conrad , S. Cutini , A. de Angelis , F. de Palma , C. D. Dermer , S. W. Digel , E. do Couto e Silva , P. S. Drell , A. Drlica-Wagner , L. Falletti , C. Favuzzi , S. J. Fegan , E. C. Ferrara , Y. Fukazawa , S. Funk , P. Fusco , F. Gargano , D. Gasparrini , N. Gehrels , S. Germani , N. Giglietto , F. Giordano , M. Giroletti , T. Glanzman , G. Godfrey , I. A. Grenier , S. Guiriec , M. Gustafsson , D. Hadasch , M. Hayashida , E. Hays , R. E. Hughes , T. E. Jeltema , G. Johannesson , R. P. Johnson , A. S. Johnson , T. Kamae , H. Katagiri , J. Kataoka , J. Knödlseder , M. Kuss , J. Lande , L. Latronico , A. M. Lionetto , M. Llena Garde , F. Longo , F. Loparco , B. Lott , M. N. Lovellette , P. Lubrano , G. M. Madejski , M. N. Mazziotta , J. E. McEnery , J. Mehault , P. F. Michelson , W. Mitthumsiri , T. Mizuno , C. Monte , M. E. Monzani , A. Morselli , I. V. Moskalenko , S. Murgia , M. Naumann-Godo , J. P. Norris , E. Nuss , T. Ohsugi , A. Okumura , N. Omodei , E. Orlando , J. F. Ormes , M. Ozaki , D. Paneque , D. Parent , M. Pesce-Rollins , M. Pierbattista , F. Piron , G. Pivato , T. A. Porter , S. Profumo , S. Raino , M. Razzano , A. Reimer , O. Reimer , S. Ritz , M. Roth , H. F. -W. Sadrozinski , C. Sbarra , J. D. Scargle , T. L. Schalk , C. Sgro , E. J. Siskind , G. Spandre , P. Spinelli , L. Strigari , D. J. Suson , H. Tajima , H. Takahashi , T. Tanaka , J. G. Thayer , J. B. Thayer , D. J. Thompson , L. Tibaldo , M. Tinivella , D. F. Torres , E. Troja , Y. Uchiyama , J. Vandenbroucke , V. Vasileiou , G. Vianello , V. Vitale , A. P. Waite , P. Wang , B. L. Winer , K. S. Wood , M. Wood , Z. Yang , S. Zimmer , M. Kaplinghat , G. D. Martinez

We examine the prospects for detecting gamma-rays from dark matter annihilation in the six most promising dwarf spheroidal (dSph) satellite galaxies of the Milky Way. We use recently-measured velocity dispersion profiles to provide a…

A wealth of recent observational studies shows the dark matter in the Milky Way to have the following fundamental properties: 1) there is no detectable dark matter associated with the Galactic disk -- the dark matter is distributed in a…

Astrophysics · Physics 2007-05-23 Gerard Gilmore

While dark matter (DM) makes up roughly 80% of the total matter in the Universe, its microscopic properties remain one of the biggest questions in Cosmology today. Fortunately, those properties dictate the distribution and form of…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-20 Michael N. Martinez

The Small Magellanic Cloud (SMC) is the second-largest satellite galaxy of the Milky Way and is only 60 kpc away. As a nearby, massive, and dense object with relatively low astrophysical backgrounds, it is a natural target for dark matter…

The Andromeda (M31) and Triangulum (M33) galaxies are the closest Local Group galaxies to the Milky Way, being only 785 and 870 kpc away. These two galaxies provide an independent view of high-energy processes that are often obscured in our…

High Energy Astrophysical Phenomena · Physics 2019-07-03 Mattia Di Mauro , Xian Hou , Christopher Eckner , Gabrijela Zaharijas , Eric Charles

We present methods to assess whether gamma-ray excesses towards Milky Way dwarf galaxies can be attributed to astrophysical sources rather than to dark matter annihilation. As a case study we focus on Reticulum II, the dwarf which shows the…

High Energy Astrophysical Phenomena · Physics 2018-07-24 Alex Geringer-Sameth , Savvas M. Koushiappas , Matthew G. Walker , Vincent Bonnivard , Céline Combet , David Maurin

The Milky Way halo is the brightest source of dark matter annihilation on the sky. Indeed, the potential strength of the Galactic dark matter signal can supersede that expected from dwarf galaxies and galaxy groups even in regions away from…

Cosmology and Nongalactic Astrophysics · Physics 2018-12-20 Laura J. Chang , Mariangela Lisanti , Siddharth Mishra-Sharma

Dark matter with MeV scale mass is difficult to detect with standard direct search detectors. However, they can be searched for by considering the up-scattering of kinetic energies by cosmic rays. Because the dark matter density is higher…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-01 Keiko I. Nagao , Satoshi Higashino , Tatsuhiro Naka , Kentaro Miuchi

Recently, an analysis of data from the Fermi Gamma Ray Space Telescope has revealed a flux of gamma rays concentrated around the inner ~0.5 degrees of the Milky Way, with a spectrum that is sharply peaked at 2-4 GeV. If interpreted as the…

High Energy Astrophysical Phenomena · Physics 2011-05-05 Dan Hooper , Tim Linden

Black holes have been found over a wide range of masses, from stellar remnants with masses of 5-150 solar masses (Msun), to those found at the centers of galaxies with $M>10^5$ Msun. However, only a few debated candidate black holes exist…

The presence of an excess gamma-ray signal toward the Galactic center (GC) has now been well established, and is known as the GC excess. Leading explanations for the signal include mis-modeling of the Galactic diffuse emission along the…

High Energy Astrophysical Phenomena · Physics 2021-03-24 Anne-Katherine Burns , Max Fieg , Christopher M. Karwin , Arvind Rajaraman

We present observations of the dwarf galaxies Draco and Ursa Minor, the local group galaxies M32 and M33, and the globular cluster M15 conducted with the Whipple 10m gamma-ray telescope to search for the gamma-ray signature of…

It has been suggested that the density of dark matter (DM) halo can be highly enhanced around supermassive black holes at the centers of massive galaxies. If real, these DM \emph{spikes} would offer new opportunities to probe the properties…

High Energy Physics - Phenomenology · Physics 2026-02-09 Stephan A. Meighen-Berger , P. S. Bhupal Dev , Matheus Hostert

The content of matter in the Universe is estimated to be the 27% of its critical density. It is almost universally accepted that most ot this matter is non-baryonic. Constraints from primordial nucleosynthesis and cosmic background…

Astrophysics · Physics 2015-06-24 E. Bisesi , M. Mariotti , V. Scalzotto

Most proposed dark matter candidates are stable and are produced thermally in the early Universe. However, there is also the possibility of unstable (but long-lived) dark matter, produced thermally or otherwise. We propose a strategy to…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-13 Sergio Palomares-Ruiz , Jennifer M. Siegal-Gaskins

Recently, it has been shown that electrons and positrons from dark matter (DM) annihilations provide an excellent fit to the Fermi, PAMELA, and HESS data. Using this DM model, which requires an enhancement of the annihilation cross section…

High Energy Astrophysical Phenomena · Physics 2009-11-20 Anders Pinzke , Christoph Pfrommer , Lars Bergstrom