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Observation of He-like satellite lines of the H-like potassium K XIX emission

Astrophysical Journal American Astronomical Society 881:2 (2019) 92

Authors:

ME Weller, P Beiersdorfer, TE Lockard, GV Brown, A McKelvey, J Nilsen, R Shepherd, VA Soukhanovskii, MP Hill, LMR Hobbs, D Burridge, DJ Hoarty, J Morton, L Wilson, Steven Rose, P Hatfield

Abstract:

We present measurements of the H-like potassium (K xix) X-ray spectrum and its He-like (K xviii) satellite lines, which are situated in the wavelength region between 3.34 and 3.39 Å, which has been of interest for the detection of dark matter. The measurements were taken with a high-resolution X-ray spectrometer from targets irradiated by a long-pulse (2 ns) beam from the Orion laser facility. We obtain experimental wavelength values of dielectronic recombination satellite lines and show that the ratio of the Lyα lines and their dielectronic satellite lines can be used to estimate the electron temperature, which in our case was about 1.5 ± 0.3 keV.
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Enhanced fluorescence from x-ray line coincidence pumping of K-pumped Cl and Mg-pumped Ge plasmas

Proceedings of SPIE Society of Photo-optical Instrumentation Engineers 11111 (2019)

Authors:

J Nilsen, D Burridge, LMR Hobbs, D Hoarty, P Beiersdorfer, GV Brown, N Hell, D Panchenko, MF Gu, AM Saunders, HA Scott, RA London, P Hatfield, MP Hill, R Charles, L Wilson, CRD Brown, Steven Rose
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Combining stellar populations with orbit-superposition dynamical modelling: the formation history of the lenticular galaxy NGC 3115

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 487:3 (2019) 3776-3796

Authors:

Adriano Poci, Richard M McDermid, Ling Zhu, Glenn van de Ven
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The Foundation Supernova Survey: Measuring Cosmological Parameters with Supernovae from a Single Telescope

The Astrophysical Journal American Astronomical Society 881:1 (2019) 19

Authors:

DO Jones, DM Scolnic, RJ Foley, A Rest, R Kessler, PM Challis, KC Chambers, DA Coulter, KG Dettman, MM Foley, ME Huber, SW Jha, E Johnson, CD Kilpatrick, RP Kirshner, J Manuel, G Narayan, Y-C Pan, AG Riess, ASB Schultz, MR Siebert, E Berger, R Chornock, H Flewelling, EA Magnier, SJ Smartt, KW Smith, RJ Wainscoat, C Waters, M Willman
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PS18kh: A New Tidal Disruption Event with a Non-axisymmetric Accretion Disk

The Astrophysical Journal American Astronomical Society 880:2 (2019) 120

Authors:

TW-S Holoien, ME Huber, BJ Shappee, M Eracleous, K Auchettl, JS Brown, MA Tucker, KC Chambers, CS Kochanek, KZ Stanek, A Rest, D Bersier, RS Post, G Aldering, KA Ponder, JD Simon, E Kankare, D Dong, G Hallinan, NA Reddy, RL Sanders, MW Topping, J Bulger, TB Lowe, EA Magnier, ASB Schultz, CZ Waters, M Willman, D Wright, DR Young, Subo Dong, JL Prieto, Todd A Thompson, L Denneau, H Flewelling, AN Heinze, SJ Smartt, KW Smith, B Stalder, JL Tonry, H Weiland
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