Search Results - "Galactic Center"

On detecting millisecond pulsars at the galactic center by Macquart, Jean-Pierre, Kanekar, N.

“…The lack of detected pulsars at the Galactic Center (GC) region is a long-standing mystery. …”
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The Galactic Center Lobe as an H ii Region by Anderson, Loren, Luisi, M., Liu, B., Linville, D.J., Benjamin, R.A., Hurley-Walker, Natasha, McClure-Griffiths, N.M., Zucker, C.

“…The Galactic center lobe (GCL) is an object ∼1° across that is located north of the Galactic center. …”
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A new era for low frequency Galactic center transient monitoring by Kassim, N., Hyman, S., Intema, Hubertus, Lazio, T.

“…An upgrade of the low frequency observing system of the VLA developed by NRL and NRAO, called low band (LB), will open a new era of Galactic center (GC) transient monitoring. Our previous searches using the VLA and GMRT have revealed a modest number of radio-selected transients, but have been severely sensitivity and observing time limited. …”
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Low-frequency Absorption and Radio Recombination Line Features of the Galactic Center Lobe by Hurley-Walker, Natasha, Anderson, Loren, Luisi, M., McClure-Griffiths, N.M., Benjamin, R.A., Kuhn, M.A., Linville, D.J., Liu, B., Zucker, C.

“…The Galactic center lobe (GCL) is a ∼1° object located north of the Galactic center. …”
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Search for a dark matter annihilation signal from the galactic center halo with H.E.S.S. by Abramowski, A., Acero, F., Aharonian, F., Akhperjanian, A., Anton, G., Barnacka, A., Barres de Almeida, U., Bazer-Bachi, A., Becherini, Y., Becker Tjus, J., Behera, B., Bernlöhr, K., Bochow, A., Boisson, C., Bolmont, J., Bordas, P., Borrel, V., Brucker, J., Brun, F., Brun, P., Bulik, T., Büsching, I., Carrigan, S., Casanova, S., Cerruti, M., Chadwick, P., Charbonnier, A., Chaves, R., Cheesebrough, A., Chounet, L., Clapson, A., Coignet, G., Conrad, J., Dalton, M., Daniel, M., Davids, I., Degrange, B., Deil, C., Dickinson, H., Djannati-Ataï, A., Domainko, W., Drury, L., Dubois, F., Dubus, G., Dyks, J., Dyrda, M., Egberts, K., Eger, P., Espigat, P., Fallon, L., Farnier, C., Fegan, S., Feinstein, F., Fernandes, M., Fiasson, A., Fontaine, G., Förster, A., Füßling, M., Gallant, Y., Gast, H., Gerard, L., Gerbig, D., Giebels, B., Glicenstein, J., Glück, B., Goret, P., Göring, D., Hague, J., Hampf, D., Hauser, M., Heinz, S., Heinzelmann, G., Henri, G., Hermann, G., Hinton, J., Hoffmann, A., Hofmann, W., Hofverberg, P., Horns, D., Jacholkowska, A., De Jager, O., Jahn, C., Jamrozy, M., Jung, I., Kastendieck, M., Katarzynski, K., Katz, U., Kaufmann, S., Keogh, D., Kerschhaggl, M., Khangulyan, D., Khélifi, B., Klochkov, D., Kluzniak, W., Kneiske, T., Komin, N., Kosack, K., Kossakowski, R., Laffon, H., Lamanna, G., Lennarz, D., Lohse, T., Lopatin, A., Lu, C., Marandon, V., Marcowith, A., Masbou, J., Maurin, D., Maxted, N., McComb, T., Medina, C., Mehault, J., Moderski, R., Moulin, E., Naumann, C., Naumann-Godo, M., de Naurois, M., Nedbal, D., Nekrassov, D., Nguyen, N., Nicholas, B., Niemiec, J., Nolan, S., Ohm, S., Olive, J., de Oña Wilhelmi, E., Opitz, B., Ostrowski, M., Panter, M., Paz Arribas, M., Pedaletti, G., Pelletier, G., Petrucci, P., Pita, S., Pühlhofer, G., Punch, M., Quirrenbach, A., Raue, M., Rayner, S., Reimer, A., Reimer, O., Renaud, M., de los Reyes Lopez, R., Rieger, F., Ripken, J., Rob, L., Rosier Lees, S., Rowell, G., Rudak, B., Rulten, C., Ruppel, J., Ryde, F., Sahakian, V., Santangelo, A., Schlickeiser, R., Schöck, F., Schönwald, A., Schwanke, U., Schwarzburg, S., Schwemmer, S., Shalchi, A., Sikora, M., Skilton, J., Sol, H., Spengler, G., Stawarz, L., Steenkamp, R., Stegmann, C., Stinzing, F., Sushch, I., Szostek, A., Tavernet, J., Terrier, R., Tibolla, Omar, Tluczykont, M., Valerius, K., van Eldik, C., Vasileiadis, G., Venter, C., Vialle, J., Viana, A., Vincent, P., Vivier, M., Volk, H., Volpe, F., Vorobiov, S., Vorster, M., Wagner, S., Ward, M., Wierzcholska, A., Zajczyk, A., Zdziarski, A., Zech, A., Zechlin, H.

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The XMM-Newton/Chandra monitoring campaign of the Galactic center region. Description of the program and preliminary results by Wijnands, R., in't Zand, J., Rupen, M., Maccarone, T., Homan, J., Cornelisse, R., Fender, R., Grindlay, J., van der Klis, M., Kuulkers, E., Markwardt, C., Miller-Jones, James, Wang, Q.

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Spectrum and variability of the Galactic center VHE y-ray source HESS J1745-290 by Aharonian, F., Akhperjanian, A., Anton, G., De Almeida, U., Bazer-Bachi, A., Becherini, Y., Behera, B., Bernlöhr, K., Boisson, C., Bochow, A., Borrel, V., Braun, I., Brion, E., Brucker, J., Brun, P., BüHLER, R., Bulik, T., Büsching, I., Boutelier, T., Chadwick, P., Charbonnier, A., Chaves, R., Cheesebrough, A., Chounet, L., Clapson, A., Coignet, G., Dalton, M., Daniel, M., Davids, I., Degrange, B., Deil, C., Dickinson, H., Djannati-Ataï, A., Domainko, W., Drury, L., Dubois, F., Dubus, G., Dyks, J., Dyrda, M., Egberts, K., Emmanoulopoulos, D., Espigat, P., Farnier, C., Feinstein, F., Fiasson, A., Förster, A., Fontaine, G., Füßling, M., Gabici, S., Gallant, Y., Gerard, L., Giebels, B., Glicenstein, J., Glück, B., Goret, P., Häuser, D., Hauser, M., Heinz, S., Heinzelmann, G., Henri, G., Hermann, G., Hinton, J., Hoffmann, A., Hofmann, W., Holleran, M., Hoppe, P., Horns, D., Jacholkowska, A., De Jager, O., Jung, I., Katarzynski, K., Katz, U., Kaufmann, S., Kendziorra, E., Kerschhaggl, M., Khangulyan, D., Khélifi, B., Keogh, D., Komin, N., Kosack, K., Lamanna, G., Lenain, J., Lohse, T., Marandon, V., Martin, J., Martineau-Huynh, O., Marcowith, A., Maurin, D., McComb, T., Medina, C., Moderski, R., Moulin, E., Naumann-Godo, M., de Naurois, M., Nedbal, D., Nekrassov, D., Niemiec, J., Nolan, S., Ohm, S., Olive, J., de Oña Wilhelmi, E., Orford, K., Ostrowski, M., Panter, M., Paz Arribas, M., Pedaletti, G., Pelletier, G., Petrucci, P., Pita, S., Pühlhofer, G., Punch, M., Quirrenbach, A., Raubenheimer, B., Raue, M., Rayner, S., Renaud, M., Rieger, F., Ripken, J., Rob, L., Rolland, L., Rosier Lees, S., Rowell, G., Rudak, B., Rulten, C., Ruppel, J., Sahakian, V., Santangelo, A., Schlickeiser, R., Schöck, F., Schröder, R., Schwanke, U., Schwarzburg, S., Schwemmer, S., Shalchi, A., Skilton, J., Sol, H., Spangler, D., Stawarz, L., Steenkamp, R., Stegmann, C., Superina, G., Szostek, A., Tam, P., Tavernet, J., Terrier, R., Tibolla, Omar, van Eldik, C., Vasileiadis, G., Venter, C., Venter, L., Vialle, J., Vincent, P., Vivier, M., Volk, H., Volpe, F., Wagner, S., Ward, M., Zdziarski, A., Zech, A.

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SEARCHES FOR POINT-LIKE AND EXTENDED NEUTRINO SOURCES CLOSE TO THE GALACTIC CENTER USING THE ANTARES NEUTRINO TELESCOPE by Adrian-Martinez, S., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Ardid, M., Aubert, J., Baret, B., Barrios-Marti, J., Basa, S., Bertin, V., Biagi, S., Bogazzi, C., Bormuth, R., Bou-Cabo, M., Bouwhuis, M., Bruijn, R., Brunner, J., Busto, J., Capone, A., Caramete, L., Carloganu, C., Carr, J., Chiarusi, T., Circella, M., Core, L., Costantini, H., Coyle, P., Creusot, A., Curtil, C., De Rosa, G., Dekeyser, I., Deschamps, A., De Bonis, G., Distefano, C., Donzaud, C., Dornic, D., Dorosti, Q., Drouhin, D., Dumas, A., Eberl, T., Elsaesser, D., Enzenhoefer, A., Escoffier, S., Fehn, K., Felis, I., Fermani, P., Folger, F., Fusco, L., Galata, S., Gay, P., Geisselsoeder, S., Geyer, K., Giordano, V., Gleixner, A., Gomez-Gonzalez, J., Graf, K., Guillard, G., van Haren, H., Heijboer, A., Hello, Y., Hernandez-Rey, J., Herold, B., Herrero, A., Hoessl, J., Hofestaedt, J., James, Clancy, de Jong, M., Kadler, M., Kalekin, O., Katz, U., Kiessling, D., Kooijman, P., Kouchner, A., Kreykenbohm, I., Kulikovskiy, V., Lahmann, R., Lambard, E., Lambard, G., Lattuada, D., Lefevre, D., Leonora, E., Loehner, H., Loucatos, S., Mangano, S., Marcelin, M., Margiotta, A., Martinez-Mora, J., Martini, S., Mathieu, A., Michael, T., Migliozzi, P., Mueller, C., Neff, M., Nezri, E., Palioselitis, D., Pavalas, G., Perrina, C., Piattelli, P., Popa, V., Pradier, T., Racca, C., Riccobene, G., Richter, R., Roensch, K., Rostovtsev, A., Saldana, M., Samtleben, D., Sanchez-Losa, A., Sanguineti, M., Sapienza, P., Schmid, J., Schnabel, J., Schulte, S., Schuessler, F., Seitz, T., Sieger, C., Spies, A., Spurio, M., Steijger, J., Stolarczyk, T., Taiuti, M., Tamburini, C., Tayalati, Y., Trovato, A., Vallage, B., Vallee, C., Van Elewyck, V., Visser, E., Vivolo, D., Wagner, S., Wilms, J., de Wolf, E., Yatkin, K., Yepes, H., Zornoza, J., Zuniga, J.

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High-mass star-forming cloud G0.38+0.04 in the Galactic center dust ridge contains H2CO and SiO masers by Ginsburg, A., Walsh, Andrew, Henkel, C., Jones, P., Cunningham, M., Kauffmann, J., Pillai, T., Mills, E., Ott, J., Kruijssen, J., Menten, K., Batersby, C., Rathborne, J., Contreras, Y., Longmore, S., Walker, D., Dawson, J., Lopez, J.

“…We have discovered a new H2CO (formaldehyde) 11,0−11,1 4.82966 GHz maser in Galactic center Cloud C, G0.38+0.04. At the time of acceptance, this is the eighth region to contain an H2CO maser detected in the Galaxy. …”
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Chronicling the Host Galaxy Properties of the Remarkable Repeating FRB 20201124A by Fong, W.F., Dong, Y., Leja, J., Bhandari, S., Day, C.K., Deller, A.T., Kumar, P., Prochaska, J.X., Scott, D.R., Bannister, K.W., Eftekhari, T., Gordon, A.C., Heintz, K.E., James, Clancy, Kilpatrick, C.D., Mahony, E.K., Rouco Escorial, A., Ryder, S.D., Shannon, Ryan, Tejos, N.

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A Search for Extraterrestrial Intelligence (SETI) toward the Galactic Anticenter with the Murchison Widefield Array by Tingay, Steven, Tremblay, C., Croft, S.

“…Our sample is significantly different to the 45 exoplanets previously studied with the MWA toward the Galactic Center, since the Galactic Center sample is dominated by exoplanets detected using microlensing, and hence at much larger distances than the exoplanets toward the Anticenter, found via radial velocity and transit detection methods. …”
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An oh(1720 MHZ) maser and a nonthermal radio source insgr b2(m): An snr-molecular cloud interaction site? by Yusef-Zadeh, F., Cotton, W., Wardle, M., Intema, Hubertus

“…Sgr B2 is a well-known star-forming molecular cloud complex in the Galactic center region showing evidence of high energy activity as traced by the Kα neutral Fe I line at 6.4 keV, as well as GeV and TeV γ-ray emission. …”
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How to calculate dark matter direct detection exclusion limits that are consistent with gamma rays from annihilation in the Milky Way halo by Cerdeno, David G., Fornasa, Mattia, Green, Anne M., Peiro, Miguel

“…For instance, if the Fermi LAT Galactic center GeV gamma-ray excess was due to WIMP annihilation, its morphology would be incompatible with the standard halo model that is usually used to interpret data from direct detection experiments. …”
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A Molecular Line Survey around Orion at Low Frequencies with the MWA by Tremblay, C., Jones, P., Cunningham, M., Hurley-Walker, Natasha, Jordan, Christopher, Tingay, Steven

“…Following the pilot survey toward the Galactic center at 103-133 MHz with the Murchison Widefield Array, we surveyed 400 deg2centered on the Orion KL nebula from 99 to 170 MHz. …”
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Gravitational waves from binary supermassive black holes missing in pulsar observations by Shannon, Ryan, Ravi, V., Lentati, L., Lasky, P., Hobbs, G., Kerr, M., Manchester, R., Coles, W., Levin, Y., Bailes, M., Bhat, N., Burke-Spolaor, S., Dai, S., Keith, M., Oslowski, S., Reardon, D., Van Strateni, W., Toomey, L., Wang, J., Wen, L., Wyithe, J., Zhu, X.

“…We conclude that binary evolution is either stalled or dramatically accelerated by galactic-center environments and that higher-cadence and shorterwavelength observations would be more sensitive to gravitational waves.…”
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Understanding the Radio Variability of Sagittarius A* by Macquart, Jean-pierre, Bower, G.

“…However, models in which the scattering region is extended out to a radius of 50-500 pc from the Galactic center account well for the broad characteristics of the variability on >4 day timescales. …”
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A search for VHE counterparts of Galactic Fermi bright sources and MeV to TeV spectral characterization by Tam, P., Wagner, S., Tibolla, Omar, Chaves, R.

“…Very high-energy (VHE; E > 100 GeV) γ-rays have been detected in a wide range of astronomical objects, such as pulsar wind nebulae (PWNe), supernova remnants (SNRs), giant molecular clouds, γ-ray binaries, the Galactic center, active galactic nuclei (AGN), radio galaxies, starburst galaxies, and possibly star-forming regions. …”
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An opportunistic Search for Extraterrestrial Intelligence (SETI) with the Murchison Widefield Array by Tingay, Steven, Tremblay, C., Walsh, Andrew, Urquhart, Ryan

“…A spectral line image cube generated from 115 minutes of MWA data that covers a field of view of 400 sq, deg. around the Galactic Center is used to perform the first Search for ExtraTerrestrial Intelligence (SETI) with the Murchison Widefield Array (MWA). …”
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Absorption filaments toward the massive clump G0.253+0.016 by Bally, J., Rathborne, J., Longmore, S., Jackson, J., Alves, J., Bressert, E., Contreras, Y., Foster, J., Garay, G., Ginsburg, A., Johnston, K., Kruijssen, J., Testi, L., Walsh, Andrew

“…The decompression of entrained, milli-Gauss magnetic fields may be responsible for the re-expansion of the surface layers of G0.253+0.016 as it recedes from the Galactic center following a close encounter with Sgr A.…”
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ALMA resolves the properties of star-forming regions in a dense gas disk at z ∼ 3 by Swinbank, A.M., Dye, S., Nightingale, J.W., Furlanetto, C., Smail, Ian, Cooray, A., Dannerbauer, H., Dunne, L., Eales, S., Gavazzi, R., Hunter, T., Ivison, R.J., Negrello, M., Oteo-Gomez, I., Smit, R., Werf, P. van der, Vlahakis, C.

“…The physical conditions of the star-forming ISM and giant molecular clouds appear to be similar to those found in the densest environments in the local universe, such as those in the Galactic center.…”
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