Asymmetric Dark Matter Imprint on Low-mass Main-sequence Stars in the Milky Way Nuclear Star Cluster

被引：16

作者：

Lopes, Jose ^{[1
]}

Lopes, Ilidio ^{[1
]}

机构：

[1] UL, IST, Dept Fis, Ctr Astrofis & Gravitacao CENTRA, Av Rovisco Pais 1, P-1049001 Lisbon, Portugal

来源：

ASTROPHYSICAL JOURNAL | 2019年 / 879卷 / 01期

关键词：

dark matter; Galaxy: nucleus; Galaxy: stellar content; stars: evolution; stars: low-mass; ENERGY-TRANSPORT; SOLAR MODELS; SPECTROSCOPY; EVAPORATION; LUMINOSITY;

D O I：

10.3847/1538-4357/ab2392

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this work, we study the impact of asymmetric dark matter (ADM) on low-mass main-sequence stars in the Milky Way's nuclear star cluster, where the dark matter (DM) density is expected to be orders of magnitude above what is found near the Sun (rho(DM) greater than or similar to 10(3) GeV cm(-3)). Using a modified stellar evolution code and considering a DM particle (m(chi) = 4 GeV) with a spin-dependent interaction cross section close to the limits allowed by direct detection, we found that the interactions of ADM with baryons in the star's core can have two separate effects on the evolution of these stars: a decrease in the hydrogen burning rate, extending the duration of the main-sequence of stars with M similar to 1M(circle dot) by a few Gyr; the suppression of the onset of convection in the core of stars with M less than or similar to 1.5M(circle dot) and consequent quench of supply for the nuclear reactions. If we consider rho(DM) > 10(3) GeV cm(-3) (corresponding to the inner 5 pc of the Milky Way), stars lighter than the Sun will have a main-sequence life span comparable to the current age of the universe. Stars heavier than two solar masses are not sensitive to the DM particles considered here.

引用

页数：8

共 57 条

[1] Search for Dark Matter Annihilations in the Sun with the 79-String IceCube Detector [J].

Aartsen, M. G. ;

Abbasi, R. ;

Abdou, Y. ;

Ackermann, M. ;

Adams, J. ;

Aguilar, J. A. ;

Ahlers, M. ;

Altmann, D. ;

Auffenberg, J. ;

Bai, X. ;

Baker, M. ;

Barwick, S. W. ;

Baum, V. ;

Bay, R. ;

Beattie, K. ;

Beatty, J. J. ;

Bechet, S. ;

Tjus, J. Becker ;

Becker, K. -H. ;

Bell, M. ;

Benabderrahmane, M. L. ;

BenZvi, S. ;

Berdermann, J. ;

Berghaus, P. ;

Berley, D. ;

Bernardini, E. ;

Bernhard, A. ;

Bertrand, D. ;

Besson, D. Z. ;

Bindig, D. ;

Bissok, M. ;

Blaufuss, E. ;

Blumenthal, J. ;

Boersma, D. J. ;

Bohaichuk, S. ;

Bohm, C. ;

Bose, D. ;

Boeser, S. ;

Botner, O. ;

Brayeur, L. ;

Brown, A. M. ;

Bruijn, R. ;

Brunner, J. ;

Buitink, S. ;

Carson, M. ;

Casey, J. ;

Casier, M. ;

Chirkin, D. ;

Christy, B. ;

Clark, K. .

PHYSICAL REVIEW LETTERS, 2013, 110 (13)

[2] Planck 2015 results I. Overview of products and scientific results [J].

Adam, R. ;

Ade, P. A. R. ;

Aghanim, N. ;

Akrami, Y. ;

Alves, M. I. R. ;

Argueeso, F. ;

Arnaud, M. ;

Arroja, F. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartlett, J. G. ;

Bartolo, N. ;

Basak, S. ;

Battaglia, P. ;

Battaner, E. ;

Battye, R. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bertincourt, B. ;

Bielewicz, P. ;

Bikmaev, I. ;

Bock, J. J. ;

Boehringer, H. ;

Bonaldi, A. ;

Bonavera, L. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burenin, R. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Carvalho, P. ;

Casaponsa, B. ;

Castex, G. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chary, R. -R. ;

Chiang, H. C. .

ASTRONOMY & ASTROPHYSICS, 2016, 594

[3] Solar fusion cross sections. II. The pp chain and CNO cycles [J].

Adelberger, E. G. ;

Garcia, A. ;

Robertson, R. G. Hamish ;

Snover, K. A. ;

Balantekin, A. B. ;

Heeger, K. ;

Ramsey-Musolf, M. J. ;

Bemmerer, D. ;

Junghans, A. ;

Bertulani, C. A. ;

Chen, J. -W. ;

Costantini, H. ;

Prati, P. ;

Couder, M. ;

Uberseder, E. ;

Wiescher, M. ;

Cyburt, R. ;

Davids, B. ;

Freedman, S. J. ;

Gai, M. ;

Gazit, D. ;

Gialanella, L. ;

Imbriani, G. ;

Greife, U. ;

Hass, M. ;

Haxton, W. C. ;

Itahashi, T. ;

Kubodera, K. ;

Langanke, K. ;

Leitner, D. ;

Leitner, M. ;

Vetter, P. ;

Winslow, L. ;

Marcucci, L. E. ;

Motobayashi, T. ;

Mukhamedzhanov, A. ;

Tribble, R. E. ;

Nollett, Kenneth M. ;

Nunes, F. M. ;

Park, T. -S. ;

Parker, P. D. ;

Schiavilla, R. ;

Simpson, E. C. ;

Spitaleri, C. ;

Strieder, F. ;

Trautvetter, H. -P. ;

Suemmerer, K. ;

Typel, S. .

REVIEWS OF MODERN PHYSICS, 2011, 83 (01) :195-245

[4] Semiconvective mixing in low-mass stars [J].

Aguirre, V. Silva ;

Ballot, J. ;

Serenelli, A. ;

Weiss, A. .

ASTROPHYSICS AND SPACE SCIENCE, 2010, 328 (1-2) :129-133

[5] Constraints on spin-dependent dark matter scattering with long-lived mediators from TeV observations of the Sun with HAWC [J].

Albert, A. ;

Alfaro, R. ;

Alvarez, C. ;

Arceo, R. ;

Arteaga-Velazquez, J. C. ;

Avila Rojas, D. ;

Solares, H. A. Ayala ;

Belmont-Moreno, E. ;

Benzvi, S. Y. ;

Brisbois, C. ;

Caballero-Mora, K. S. ;

Capistran, T. ;

Carraminana, A. ;

Casanova, S. ;

Castillo, M. ;

Cotzomi, J. ;

Coutino de Leon, S. ;

De Leon, C. ;

De la Fuente, E. ;

Dichiara, S. ;

Dingus, B. L. ;

DuVernois, M. A. ;

Diaz-Velez, J. C. ;

Engel, K. ;

Enriquez-Rivera, O. ;

Espinoza, C. ;

Fleischhack, H. ;

Fraija, N. ;

Garcia-Gonzalez, J. A. ;

Garfias, F. ;

Gonzalez, M. M. ;

Goodman, J. A. ;

Hampel-Arias, Z. ;

Harding, J. P. ;

Hernandez, S. ;

Hona, B. ;

Hueyotl-Zahuantitla, F. ;

Huntemeyer, P. ;

Iriarte, A. ;

Jardin-Blicq, A. ;

Joshi, V ;

Kaufmann, S. ;

Leon Vargas, H. ;

Luis-Raya, G. ;

Lundeen, J. ;

Lopez-Coto, R. ;

Malone, K. ;

Marinelli, S. S. ;

Martinez, O. ;

Martinez-Castellanos, I .

PHYSICAL REVIEW D, 2018, 98 (12)

[6]

ALLEN DA, 1990, MON NOT R ASTRON SOC, V244, P706

[7] Dark Matter Search Results from the PICO-60C3F8 Bubble Chamber [J].

Amole, C. ;

Ardid, M. ;

Arnquist, I. J. ;

Asner, D. M. ;

Baxter, D. ;

Behnke, E. ;

Bhattacharjee, P. ;

Borsodi, H. ;

Bou-Cabo, M. ;

Campion, P. ;

Cao, G. ;

Chen, C. J. ;

Chowdhury, U. ;

Clark, K. ;

Collar, J. I. ;

Cooper, P. S. ;

Crisler, M. ;

Crowder, G. ;

Dahl, C. E. ;

Das, M. ;

Fallows, S. ;

Farine, J. ;

Felis, I. ;

Filgas, R. ;

Girard, F. ;

Giroux, G. ;

Hall, J. ;

Harris, O. ;

Hoppe, E. W. ;

Jin, M. ;

Krauss, C. B. ;

Laurin, M. ;

Lawson, I. ;

Leblanc, A. ;

Levine, I. ;

Lippincott, W. H. ;

Mamedov, F. ;

Maurya, D. ;

Mitra, P. ;

Nania, T. ;

Neilson, R. ;

Noble, A. J. ;

Olson, S. ;

Ortega, A. ;

Plante, A. ;

Podviyanuk, R. ;

Priya, S. ;

Robinson, A. E. ;

Roeder, A. ;

Rucinski, R. .

PHYSICAL REVIEW LETTERS, 2017, 118 (25)

[8] The distribution of stars around the Milky Way's central black hole III. Comparison with simulations [J].

Baumgardt, H. ;

Amaro-Seoane, P. ;

Schodel, R. .

ASTRONOMY & ASTROPHYSICS, 2018, 609

[9] Final results of the PICASSO dark matter search experiment [J].

Behnke, E. ;

Besnier, M. ;

Bhattacharjee, P. ;

Dai, X. ;

Das, M. ;

Davour, A. ;

Debris, F. ;

Dhungana, N. ;

Farine, J. ;

Fines-Neuschild, M. ;

Gagnebin, S. ;

Giroux, G. ;

Grace, E. ;

Jackson, C. M. ;

Kamaha, A. ;

Krauss, C. B. ;

Lafreniere, M. ;

Laurin, M. ;

Lawson, I. ;

Lessard, L. ;

Levine, I. ;

Marlisov, D. ;

Martin, J. -P. ;

Mitra, P. ;

Noble, A. J. ;

Plante, A. ;

Podviyanuk, R. ;

Pospisil, S. ;

Scallon, O. ;

Seth, S. ;

Starinski, N. ;

Stekl, I. ;

Wichoski, U. ;

Zacek, V. .

ASTROPARTICLE PHYSICS, 2017, 90 :85-92

[10]

Bohm-Vitense E., 1958, Z ASTROPHYS, V46, P108

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