Search Results - stellar spectrum

Two stellar-mass black holes in the globular cluster M22 by Strader, J., Chomiuk, L., Maccarone, T., Miller-Jones, James, Seth, A.

“…Here we report the presence of two flat-spectrum radio sources in the Milky Way globular cluster M22, and we argue that these objects are black holes of stellar mass (each ~10–20 times more massive than the Sun) that are accreting matter. …”
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Radio Variability from a Quiescent Stellar-mass Black Hole Jet by Plotkin, Richard, Miller-Jones, James, Chomiuk, L., Strader, J., Bruzewski, S., Bundas, A., Smith, K.R., Ruan, J.J.

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The fading of two transient ultraluminous x-ray sources to below the stellar mass Eddington limit by Burke, M., Kraft, R., Soria, Roberto, Maccarone, T., Raychaudhury, S., Sivakoff, G., Birkinshaw, M., Brassington, N., Forman, W., Hardcastle, M., Jones, C., Murray, S., Worrall, D.

“…We utilize quantile analyses to demonstrate that the spectra are generally soft, and that in one observation the spectrum of ULX2 is inconsistent with a canonical hard state at >95% confidence. …”
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Unveiling recurrent jets of the ULX Holmberg II X-1: evidence for a massive stellar-mass black hole? by Cseh, D., Kaaret, P., Corbel, S., Grisé, F., Lang, C., Kording, E., Falcke, H., Jonker, P., Miller-Jones, James, Farrell, S., Yang, Y., Paragi, Z., Frey, S.

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SMSS J130522.47-293113.0: A high-latitude stellar X-ray source with pc-scale outflow relics? by Da Costa, G., Soria, Roberto, Farrell, S., Bayliss, D., Bessell, M., Vogt, F., Zhou, G., Points, S., Beers, T., López-Sanchez, A., Bannister, K., Bell, M., Hancock, Paul, Burlon, D., Gaensler, B., Sadler, E., Tingay, Steven, Keller, S., Schmidt, B., Tisserand, P.

“…We report the discovery of an unusual stellar system SMSS J130522.47-293113.0. The optical spectrum is dominated by a blue continuum together with emission lines of hydrogen, neutral, and ionized helium, and the NIII, CIII blend at ~4640-4650 Å. …”
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Comprehensive view of a z ∼ 6.5 radio-loud quasi-stellar object: From the radio to the optical/NIR to the X-ray band by Ighina, Luca, Caccianiga, A., Moretti, A., Broderick, Jess, Leung, J.K., Paterson, Sean, Rigamonti, F., Seymour, Nick, Belladitta, S., Drouart, G., Galvin, T.J., Hurley-Walker, Natasha

“…We present a multi-wavelength analysis, from the radio to the X-ray band, of the redshift z=6.44 VIK J2318-31 radio-loud quasi-stellar object, one of the most distant currently known of this class. …”
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High-resolution AMI Large Array imaging of spinning dust sources: spatially correlated 8 µm emission and evidence of a stellar wind in L675 by Scaife, A., Green, D., Pooley, G., Davies, M., Franzen, Thomas, Grainge, K., Hobson, M., Hurley-Walker, Natasha, Lasenby, A., Olamaie, M., Richer, J., Rodriguez-Gonzalvez, C., Saunders, R., Scott, P., Shimwell, T., Titterington, D., Waldram, E., Zwart, J.

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Exploring the thermal state of the low-density intergalactic medium at z = 3 with an ultra-high signal-to-noise QSO spectrum by Rorai, A., Becker, George D., Haehnelt, Martin G., Carswell, R.F., Bolton, James S., Cristiani, S., D'Odorico, V., Cupani, G., Barai, P., Calura, F., Kim, T.-S., Pomante, E., Tescari, E., Viel, Matteo

“…We utilize here an ultrahigh signal-to-noise spectrum of the Quasi-stellar object HE0940-1050 and a novel technique to study the low opacity part of the PDF. …”
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SDSS-IV MaNGA: bulge–disc decomposition of IFU data cubes (BUDDI) by Johnston, Evelyn J., Häußler, Boris, Aragón-Salamanca, Alfonso, Merrifield, Michael R., Bamford, Steven, Bershady, Matthew A., Bundy, Kevin, Drory, Niv, Fu, Hai, Law, David, Nitschelm, Christian, Thomas, Daniel, Roman Lopes, Alexandre, Wake, David, Yan, Renbin

“…The benefit of this technique over traditional multiwaveband fits is that the stellar populations of each component can be constrained using knowledge over the whole image and spectrum available. …”
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The Cosmic Chemical Evolution Histories of Spiral Galaxies by Greener, Michael John

“…By making use of software which allows the integrated spectrum of a galaxy to be decomposed into stellar population spectra of single ages and stellar metallicities, we are able to obtain spatially resolved measures of the dust attenuation affecting the stellar populations of the spirals. …”
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Relativistic X-Ray Jets from the Black Hole X-Ray Binary MAXI J1820+070 by Espinasse, M., Corbel, S., Kaaret, P., Tremou, E., Migliori, G., Plotkin, Richard, Bright, J., Tomsick, J., Tzioumis, A., Fender, R., Orosz, J.A., Gallo, E., Homan, J., Jonker, P.G., Miller-Jones, James, Russell, D.M., Motta, S.

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MeerKAT discovery of radio emission from the Vela X-1 bow shock by Van Den Eijnden, J., Heywood, I., Fender, R., Mohamed, S., Sivakoff, G.R., Saikia, P., Russell, T.D., Motta, S., Miller-Jones, James, Woudt, P.A.

“…Vela X-1 is a runaway X-ray binary system hosting a massive donor star, whose strong stellar wind creates a bow shock as it interacts with the interstellar medium (ISM). …”
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The ultraluminous X-ray source bubble in NGC 5585 by Soria, Roberto, Pakull, M.W., Motch, C., Miller-Jones, James, Schwope, A.D., Urquhart, R.T., Ryan, M.S.

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A re-establishing jet during an X-ray re-brightening of the Be/X-ray binary Swift J0243.6+6124 by Van Den Eijnden, J., Degenaar, N., Russell, T.D., Hernández Santisteban, J.V., Wijnands, R., Miller-Jones, James, Rouco Escorial, A., Sivakoff, G.R.

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The slim-disk state of the ultraluminous X-ray source in M83 by Soria, Roberto, Kuntz, K., Long, K., Blair, W., Plucinsky, P., Winkler, P.

“…From its broadened disk-like spectral shape at that luminosity, and from the fitted inner-disk radius and temperature, we argue that the accreting object is an ordinary stellar-mass BH with M ~ 10-20 M ☉. We suggest that in the 2010 and 2011 Chandra observations, the source was seen at a higher accretion rate, resulting in a power-law-dominated spectrum with a soft excess at large radii.…”
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A mass of less than 15 solar masses for the black hole in an ultraluminous X-ray source by Motch, C., Pakull, M., Soria, Roberto, Grisé, F., Pietrzynski, G.

“…Recently, a very soft X-ray spectrum was observed in a rare and transient stellar-mass black hole. …”
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A Radio-selected Black Hole X-Ray Binary Candidate in the Milky Way Globular Cluster M62 by Chomiuk, L., Strader, J., Maccarone, T., Miller-Jones, James, Heinke, C., Noyola, E., Seth, A., Ransom, S.

“…M62-VLA1 is a faint source with a flux density of 18.7 ± 1.9 μJy at 6.2 GHz and a flat radio spectrum (α = –0.24 ± 0.42, for S ν = να). M62 is the second Milky Way cluster with a candidate stellar-mass black hole; unlike the two candidate black holes previously found in the cluster M22, M62-VLA1 is associated with a Chandra X-ray source, supporting its identification as a black hole X-ray binary. …”
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Radio observations of candidate magnetic O stars by Schnerr, R., Rygl, K., van der Horst, A., Oosterloo, T., Miller-Jones, James, Henrichs, H., Spoelstra, T., Foley, A.

“…Per, which shows a non-thermal radio spectrum, and a Cam and ? Cep, which show no evidence of a non-thermal spectrum. …”
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The formation of lenticular galaxies in nearby clusters by Johnston, Evelyn Joanne

“…The progenitor spirals generally consist of bulges with old stellar populations surrounded by young, bright discs. …”
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The first galaxies in the Hubble Frontier Fields by Bhatawdekar, Rachana

“…We measure the UV spectral slope $\beta$ by fitting the observed spectral energy distribution to a set of synthetic stellar population models and estimate the value of $\beta$ from the best-fit model spectrum. …”
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