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Heliolatitude and Time Variations of Solar Wind Structure from in situ Measurements and Interplanetary Scintillation Observations
McComas, D. J.; Bzowski, M.; Tokumaru, M. +2 more
The 3D structure of the solar wind and its evolution in time are needed for heliospheric modeling and interpretation of energetic neutral atoms observations. We present a model to retrieve the solar wind structure in heliolatitude and time using all available and complementary data sources. We determine the heliolatitude structure of solar wind sp…
The closest look at 1H0707-495: X-ray reverberation lags with 1.3 Ms of data
Fabian, A. C.; Steiner, J. F.; Uttley, P. +4 more
Reverberation lags in active galactic nuclei (AGN) were first discovered in the NLS1 galaxy, 1H0707-495. We present a follow-up analysis using 1.3 Ms of data, which allows for the closest ever look at the reverberation signature of this remarkable source. We confirm previous findings of a hard lag of ∼100 s at frequencies ν ∼ [0.5-4] × 10-4
The X-Ray Star Formation Story as Told by Lyman Break Galaxies in the 4 Ms CDF-S
Brandt, W. N.; Bouwens, Rychard J.; Zezas, Andreas +12 more
We present results from deep X-ray stacking of >4000 high-redshift galaxies from z ≈ 1 to 8 using the 4 Ms Chandra Deep Field-South data, the deepest X-ray survey of the extragalactic sky to date. The galaxy samples were selected using the Lyman break technique based primarily on recent Hubble Space Telescope ACS and WFC3 observations. Based on…
HST hot Jupiter transmission spectral survey: detection of water in HAT-P-1b from WFC3 near-IR spatial scan observations
Aigrain, S.; Pont, F.; Fortney, J. J. +13 more
We present Hubble Space Telescope near-infrared transmission spectroscopy of the transiting hot-Jupiter HAT-P-1b. We observed one transit with Wide Field Camera 3 using the G141 low-resolution grism to cover the wavelength range 1.087-1.678 µm. These time series observations were taken with the newly available spatial-scan mode that increase…
Candidate type II quasars at 2 < z < 4.3 in the Sloan Digital Sky Survey III
Brandt, W. N.; Petitjean, Patrick; Ross, Nicholas P. +12 more
At low redshifts, dust-obscured quasars often have strong yet narrow permitted lines in the rest-frame optical and ultraviolet, excited by the central active nucleus, earning the designation type II quasars. We present a sample of 145 candidate type II quasars at redshifts between 2 and 4.3, encompassing the epoch at which quasar activity peaked i…
First results from the Herschel Gould Belt Survey in Taurus
Abergel, A.; Bernard, J. -P.; Hill, T. +26 more
The whole of the Taurus region (a total area of 52 deg2) has been observed by the Herschel Spectral and Photometric Imaging Receiver (SPIRE) and Photodetector Array Camera and Spectrometer (PACS) instruments at wavelengths of 70, 160, 250, 350 and 500 µm as part of the Herschel Gould Belt Survey. In this paper we present the first…
Double Blue Straggler Sequences in Globular Clusters: The Case of NGC 362
Dalessandro, E.; Massari, D.; Beccari, G. +8 more
We used high-quality images acquired with the Wide Field Camera 3 on board the Hubble Space Telescope to probe the blue straggler star (BSS) population of the galactic globular cluster NGC 362. We have found two distinct sequences of BSSs: this is the second case, after M30, where such a feature has been observed. Indeed, the BSS location, their e…
Constraining globular cluster formation through studies of young massive clusters - I. A lack of ongoing star formation within young clusters
Cabrera-Ziri, I.; Bastian, N.; Larsen, S. S. +1 more
We present a survey of 130 Galactic and extragalactic young massive clusters (YMCs, 104 < M/M⊙ < 108, 10 < t/Myr < 1000) with integrated spectroscopy or resolved stellar photometry (40 presented here and 90 from the literature) and use the sample to search for evidence of ongoing star formation within t…
An XMM-Newton Survey of the Soft X-Ray Background. III. The Galactic Halo X-Ray Emission
Henley, David B.; Shelton, Robin L.
We present measurements of the Galactic halo's X-ray emission for 110 XMM-Newton sight lines selected to minimize contamination from solar wind charge exchange emission. We detect emission from few million degree gas on ~4/5 of our sight lines. The temperature is fairly uniform (median = 2.22 × 106 K, interquartile range = 0.63 × 10
Modeling the wave normal distribution of chorus waves
Thorne, Richard M.; Li, Wen; Chen, Lunjin +1 more
The propagation and attenuation characteristics of lower band and upper band chorus waves are investigated by ray tracing, and the evaluation of Landau damping based on an empirical suprathermal electron model derived from Time History of Events and Macroscale Interactions during Substorms (THEMIS) data. The rate of Landau damping is found to incr…