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Non-parametric deprojection of NIKA SZ observations: Pressure distribution in the Planck-discovered cluster PSZ1 G045.85+57.71
Adam, R.; Arnaud, M.; Benoît, A. +38 more
The determination of the thermodynamic properties of clusters of galaxies at intermediate and high redshift can bring new insights into the formation of large-scale structures. It is essential for a robust calibration of the mass-observable scaling relations and their scatter, which are key ingredients for precise cosmology using cluster statistic…
Extending the Calibration of C IV-based Single-epoch Black Hole Mass Estimators for Active Galactic Nuclei
Treu, Tommaso; Barth, Aaron J.; Assef, Roberto J. +5 more
We provide an updated calibration of C IV λ 1549 broad emission line-based single-epoch (SE) black hole (BH) mass estimators for active galactic nuclei (AGNs) using new data for six reverberation-mapped AGNs at redshift z=0.005{--}0.028 with BH masses (bolometric luminosities) in the range {10}6.5{--}{10}7.5 {M}⊙ …
Discovery of a new accreting millisecond X-ray pulsar in the globular cluster NGC 2808
Sanna, A.; Rea, N.; Ferrigno, C. +6 more
We report on the discovery of coherent pulsations at a period of 2.9 ms from the X-ray transient MAXI J0911-655 in the globular cluster NGC 2808. We observed X-ray pulsations at a frequency of 339.97 Hz in three different observations of the source performed with XMM-Newton and NuSTAR during the source outburst. This newly discovered accreting mil…
A 1D Model of Radial Ion Motion Interrupted by Ion-Neutral Interactions in a Cometary Coma
Vigren, E.; Eriksson, A. I.
Because ion-neutral reaction cross sections are energy dependent, the distance from a cometary nucleus within which ions remain collisionally coupled to the neutrals is dictated not only by the comet’s activity level but also by the electromagnetic fields in the coma. Here we present a 1D model simulating the outward radial motion of water group i…
The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. VIII. Preliminary Public Catalog Release
Anderson, J.; Cool, A. M.; Milone, A. P. +14 more
The Hubble Space Telescope (HST) UV Legacy Survey of Galactic Globular Clusters (GO-13297) has been specifically designed to complement the existing F606W and F814W observations of the Advanced Camera for Surveys (ACS) Globular Cluster Survey (GO-10775) by observing the most accessible 47 of the previous survey’s 65 clusters in three WFC3/UVIS fil…
The KMOS Cluster Survey (KCS). I. The Fundamental Plane and the Formation Ages of Cluster Galaxies at Redshift 1.4 < z < 1.6
Bender, Ralf; Mendel, J. Trevor; Cappellari, Michele +13 more
We present the analysis of the fundamental plane (FP) for a sample of 19 massive red-sequence galaxies (M\star > 4× 1010 M⊙) in three known overdensities at 1.39< z< 1.61 from the K-band Multi-object Spectrograph (KMOS) Cluster Survey, a guaranteed-time program with spectroscopy from the KMOS at the VLT an…
H I, CO, and Dust in the Perseus Cloud
Tachihara, Kengo; Fukui, Yasuo; Hayashi, Katsuhiro +3 more
Comparison analyses between the gas emission data ({{H}} {{I}} 21 {cm} line and {CO} 2.6 {mm} line) and the Planck/IRAS dust emission data (optical depth at 353 {GHz} {τ }353 and dust temperature {T}{{d}}) allow us to estimate the amount and distribution of the hydrogen gas more accurately, and our previous studies revealed t…
Constraints on direction-dependent cosmic birefringence from Planck polarization data
Scott, Douglas; Contreras, Dagoberto; Boubel, Paula
Cosmic birefringence is the process that rotates the plane of polarization by an amount, α, as photons propagate through free space. Such an effect arises in parity-violating extensions to the electromagnetic sector, such as the Chern-Simons term common in axion models, quintessence models, or Lorentz-violating extensions to the standard model. Mo…
Rotating Stars from Kepler Observed with Gaia DR1
Davenport, James R. A.
Astrometric data from the recent Gaia Data Release 1 have been matched against the sample of stars from Kepler with known rotation periods. A total of 1299 bright rotating stars were recovered from the subset of Gaia sources with good astrometric solutions, most with temperatures above 5000 K. From these sources, 894 were selected as lying near th…
Survey of Water and Ammonia in Nearby Galaxies (SWAN): Resolved Ammonia Thermometry, and Water and Methanol Masers in the Nuclear Starburst of NGC 253
Meier, David S.; Ott, Jürgen; Schinnerer, Eva +3 more
We present Karl G. Jansky Very Large Array molecular line observations of the nearby starburst galaxy NGC 253, from SWAN, the Survey of Water and Ammonia in Nearby galaxies. SWAN is a molecular line survey at centimeter wavelengths designed to reveal the physical conditions of star-forming gas over a range of star-forming galaxies. NGC 253 has bee…