Science Archives Publication System

Constraints on the birth of the universe and origin of cosmic dark flow

DOI: 10.1142/S0217751X15450220 Bibcode: 2015IJMPA..3045022M

Garnavich, P.; Mathews, G. J.; Gangopadhyay, M. R. +4 more

We summarize three recent efforts to constrain the first few moments of cosmic creation before and during the epoch of inflation. We consider two means to explain a slight dip in the power spectrum of the cosmic microwave background for multipoles in the range of ℓ = 10-30 from both the Planck and WMAP data. We show that such a dip could be the re…

2015 • International Journal of Modern Physics A

Planck 1

The Science of the Cluster Mission

DOI: 10.1007/978-3-319-18359-6_8 Bibcode: 2015ASSP...41..159T

Laakso, Harri; Goldstein, Melvyn L.; Escoubet, C. Philippe +6 more

2015 • Magnetospheric Plasma Physics: The Impact of Jim Dungey's Research

Cluster 1

Consistency relation for natural inflation with Planck 2015 data

DOI: 10.1007/s10509-015-2514-1 Bibcode: 2015Ap&SS.359...63N

Nozari, Kourosh; Kahvaee, H.; Rashidi, N.

We consider the cosine Natural inflation model that is a good candidate to explain the initial accelerating phase of the universe. By computing the inflationary parameters in Einstein frame, we construct a consistency relation between the scalar spectral index, tensor-to-scalar ratio, as well as the running of the scalar spectral index and compare…

2015 • Astrophysics and Space Science

Planck 1

Comet C/2013 A1 (Siding Spring) as seen with the Herschel Space Observatory

DOI: 10.1051/0004-6361/201425127 Bibcode: 2015A&A...574L...3K

Marton, G.; Müller, T. G.; Kidger, M. +2 more

The thermal emission of comet C/2013 A1 (Siding Spring) was observed on March 31, 2013, at a heliocentric distance of 6.48 au using the PACS photometer camera of the Herschel Space Observatory. The comet was clearly active, showing a coma that could be traced to a distance of ~10'', i.e. ~50 000 km. Analysis of the radial intensity profiles of the…

2015 • Astronomy and Astrophysics

Herschel 1

Twisted Crab fingers revisited

DOI: 10.1007/s10509-015-2273-z Bibcode: 2015Ap&SS.357...47C

Carlqvist, Per

Narrowband images of the Crab Nebula captured by the Hubble Space Telescope have earlier shown that the nebula does not only present a network of broad, bright filaments crossing the nebula but also numerous so-called fingers mostly pointing inwards. Using archival Hubble images we have in some detail studied the morphology of a great number of su…

2015 • Astrophysics and Space Science

eHST 1

Tentative insight into the multiplicity of the persistent dust maker WR 106 from X-ray observations

DOI: 10.1016/j.newast.2015.05.002 Bibcode: 2015NewA...41....5D

De Becker, M.

This paper presents the results of the analysis of the very first dedicated X-ray observation with XMM-Newton of WR 106. This carbon-rich WC9d Wolf-Rayet star belongs to the category of persistent dust makers (WCd stars). The issue of the multiplicity of these dust makers is pivotal to understand the dust formation process, and in this context X-r…

2015 • New Astronomy

XMM-Newton 1

The Kinematics Parameters of the Galaxy Using Data of Modern Astrometric Catalogues

Bibcode: 2015OAP....28..154A

Akhmetov, V. S.; Fedorov, P. N.; Velichko, A. B. +1 more

Based on the Ogorodnikov-Milne model, we analyze the proper motions of XPM2, UCAC4 and PPMXL stars. To estimate distances to the stars we used the method of statistical parallaxes herewith the random errors of the distance estimations do not exceed 10%. The method of statistical parallaxes was used to estimate the distances to stars with random er…

2015 • Odessa Astronomical Publications

Hipparcos 1

Solar and Heliospheric Observatory (SOHO) (1995)

DOI: 10.1007/978-3-319-03952-7_14 Bibcode: 2015hchp.book..159F

St. Cyr, O. C.; Fleck, B.

SOHO is the most comprehensive space mission ever devoted to the study of the Sun and its nearby cosmic environment known as the heliosphere. It was launched in December 1995 and is currently funded at least through the end of 2016. SOHO's 12 instruments observe and measure structures and processes occurring inside as well as outside the Sun and w…

2015 • Handbook of Cosmic Hazards and Planetary Defense

SOHO 1

The Balmer Lines of He II in the Blue Wing of the Hydrogen Lyman α Line Observed in a Quiescent Prominence

DOI: 10.1007/s11207-014-0611-x Bibcode: 2015SoPh..290..381V

Vial, J. -C.; Curdt, W.; Eurin, G.

We revisit the prominence observations in the Lyman α line of Curdt et al. (Astron. Astrophys.511, L4, 2010) and focus on the bump in the blue wing of the line, which we identify with He II Balmer lines. We determine the transition candidates, derive an upper limit for the width of the profile and an associated non-thermal velocity close to 0 km s…

2015 • Solar Physics

SOHO 1

Mobile applications and Virtual Observatory

DOI: 10.1016/j.ascom.2015.03.006 Bibcode: 2015A&C....11..155S

Schaaff, A.; Jagade, S.

Within a few years, smartphones and Internet tablets have become the devices to access Web or standalone applications from everywhere, with a rapid development of the bandwidth of the mobile networks (e.g. 4G). Internet tablets are used to take notes during meetings or conferences, to read scientific papers in public transportation, etc. A smartph…

2015 • Astronomy and Computing

XMM-Newton 1