TeV Particle Astrophysics 2017 (TeVPA 2017)

Session

Plenary session

7 Aug 2017, 09:10

Davidson Theatre

Conveners

Plenary session

• Tim Linden
• John Beacom (Ohio State University)

Plenary session

• Mauricio Bustamante (Ohio State University)

Plenary session

• Annika Peter (Center for Cosmology and AstroParticle Physics, The Ohio State University)
• James Beatty (Ohio State University)

Plenary session

• Tim Linden
• Katie Auchettl (Center for Cosmology and Astroparticle Physics, The Ohio State University)

Plenary session

• Annika Peter (Center for Cosmology and AstroParticle Physics, The Ohio State University)
• Katie Auchettl (Center for Cosmology and Astroparticle Physics, The Ohio State University)

342. Challenges of particle physics theory

Nima Arkani-Hamed (IAS)

07/08/2017, 09:10

Oral

TBD

217. Galactic cosmic ray sources: a multimessenger view

Julia Tjus

07/08/2017, 09:40

Oral

In this talk, the current state-of-the-art on our knowledge and ignorance of galactic cosmic ray sources will be presented. In particular, cosmic ray observables from MeV to (super-)PeV will be presented. This concerns a (potentially) direct view on the sources via ionization signatures, neutrinos and gamma-rays as well as those pieces of information provided by cosmic rays themselves, i.e....

36. Indirect Searches for Dark Matter

UNKNOWN UNKNOWN

07/08/2017, 10:40

Oral

I will review the current status of indirect dark matter searches, and discuss possible future directions.

245. PandaX Dark Matter Search

Prof. Xiangdong Ji (Shanghai Jiao Tong University/University of Maryland)

07/08/2017, 11:10

Oral

In this talk, I will describe the status and plans for PandaX dark matter search from Jinping Undeground Lab in China.

337. Hidden-sector dark matter

Kathryn Zurek (LBNL)

07/08/2017, 11:40

Oral

We discuss the paradigm of dark matter from a hidden sector, and observational implications for colliders and direct detection experiments.

43. Neutrinos in the Era of Multimessenger Astronomy

Francis Halzen (University of Wisconsin)

08/08/2017, 09:00

Oral

We will review the status of the observations of cosmic neutrinos and the model-independent constraints on the properties of the sources where they originate. We will emphasize the multimessenger relations connecting neutrino, gamma ray, and cosmic-ray observations and conclude that neutrinos are ubiquitous in the nonthermal universe suggesting a more significant role than previously...

48. Radio Detection of the Highest Energy Neutrinos

Abigail Vieregg (University of Chicago)

08/08/2017, 09:30

Oral

Searches for ultra-high energy neutrinos ($E>{10}^{17}$ eV) probe the
nature of the highest energy universe in a unique way and test our understanding
of particle physics at energies much greater than those achievable at particle
colliders. I will discuss the range of strategies used to search for the highest energy neutrinos via radio emission from neutrino-induced showers, and the current...

335. Neutrino Astronomy - Fast Forward

Mr Marek Kowalski (HU Berlin and DESY)

08/08/2017, 10:30

Oral

I will review some of the open questions in high-energy neutrino astronomy raised by the observations of IceCube in concert with cosmic ray and gamma-ray observatories, and how they can be addressed through a new generation of neutirno observatories.

294. Very high-energy emission from transients

Raffaella Margutti

08/08/2017, 11:00

Oral

I briefly review the status of high-energy emission from astronomical transients concentrating on current efforts to detect high-energy emission from strongly interacting shocks of young stellar explosions (both ordinary and superluminous). In particular, I will present the case of the search for high-energy emission from the remarkable SN2014C. SN2014C evolved from a normal Type I...

153. Connections to Compact Dark Matter

Prof. Marc Kamionkowski (Johns Hopkins University)

08/08/2017, 11:30

Oral

The elusive nature of dark matter calls for new ideas. An old but largely overlooked possibility is compact dark matter—perhaps primordial black holes—with masses comparable to the masses of stars. Null microlensing searches rule out fairly robustly masses below ten solar masses. Constraints to higher masses are, however, a bit trickier but have been the subject of considerable recent...

351. Fast Radio Bursts and CHIME

Victoria Kaspi (McGill University)

09/08/2017, 09:00

Oral

I review our present observational understanding of the mysterious new phenomenon of Fast Radio Bursts -- short (few ms) bursts of radio waves arriving from apparently cosmological distances -- as well as models for what these sources may be. I also describe the CHIME telescope, currently being built in Canada, and how it will impact this interesting puzzle.

302. The new era of galactic cosmic rays

Veronica Bindi (University of Hawai'i at Manoa (US))

09/08/2017, 09:30

Oral

A new era in galactic cosmic rays physics has started with the precise and continuous observations from space experiments such as PAMELA and AMS-02. Their invaluable results are rewriting the theory of acceleration and propagation of cosmic rays. Both at high energies, where several new behaviors have been measured, challenging the accuracy of theoretical models, as well as at low energies, in...

320. Ultra-High-Energy Cosmic Rays

Ralph Engel (KIT - Karlsruhe Institute of Technology (DE))

09/08/2017, 10:30

Oral

In this talk I will review the status and prospects of understanding the physics of ultra-high-energy cosmic rays. Focusing on the progress made thanks to data of the Pierre Auger Observatory and Telescope Array, observations are discussed in the context of their implications for various source scenarios and remaining uncertainties are highlighted. The talk concludes with a summary of ongoing...

41. Cosmological magnetic fields and particle acceleration in the laboratory

Gianluca Gregori (University of Oxford)

09/08/2017, 11:00

Oral

Magnetic fields are ubiquitous in the Universe. The energy density of these fields is typically comparable to the energy density of the fluid motions of the plasma in which they are embedded. Magnetic fields are also essential for the production of high energy cosmic rays. The standard theoretical model for the origin of these strong magnetic fields is through the amplification of tiny seed...

313. Cosmic-ray and gamma-ray anomalies and their interpretations

Daniele Gaggero

09/08/2017, 11:30

Oral

I will review several interesting anomalies in cosmic-ray (CR) and gamma-ray data and discuss possible interpretations, focusing on what they can reveal about the nature of CR sources and the physics of CR transport in the Galaxy.

425. Dark Energy Survey Year 1 Cosmology Results

Dr Elisabeth Krause (Stanford)

09/08/2017, 11:48

Oral

The first year of the Dark Energy Survey observations imaged 1321 square degree of the Southern sky in griz. We present measurements of galaxy clustering and weak gravitational lensing from this data set, and cosmological parameters inferred from these these two-point correlation functions in a blind analysis.

344. High-energy x-rays

Fiona Harrison

10/08/2017, 09:00

248. High-energy emission from compact astrophysical objects

Dr Emma de Ona Wilhelmi (CSIC-IEEC)

10/08/2017, 09:30

Oral

Compact astrophysical sources represent the most extreme and powerful end-points of the life of massive stars. They power relativistic and magnetized plasma which interact with the ambient medium, leading to a large variety of phenomena observable in the high- and very-high energy regime. In particular the complex Pulsar/Pulsar Wind-Nebulae/Supernova Remnant blast provides an optimal scenario...

39. The Multi-TeV Northern sky seen with HAWC

Prof. Miguel Mostafa (Penn State University)

10/08/2017, 10:30

Oral

I will present the most recent results from two years of HAWC data.

242. The Search of Dark Matter in the Gamma Ray Sky

Prof. Mariangela Lisanti (Princeton Univetsity)

10/08/2017, 11:00

Oral

The annihilation of dark matter can lead to observable signatures in
high-energy gamma rays. I will review the
current status of such dark matter searches with data from the Fermi Large
Area Telescope. In particular, I will discuss searches within the Milky Way and Local Group, and present results from a new study that uses galaxy surveys to improve sensitivity to signals of extragalactic...

238. Recent Updates on the 3.5 keV Line

Esra Bulbul

10/08/2017, 11:30

Oral

A well-motivated warm dark matter candidate, sterile neutrinos, can radiatively decay and emit X-rays detectable in observations of large dark matter aggregations such as galaxies and clusters of galaxies. I will review the current and past efforts on searching for decaying dark matter in galaxy clusters and galaxies with a special focus on the 3.5 keV line. Additionally, I will summarize how...

164. Resolving High Energy Universe Using Strong Gravitational Lensing

Anna Barnacka (Harvard University)

10/08/2017, 11:48

Oral

Extragalactic jets are the largest particle accelerators in the universe, producing radiation ranging from radio wavelengths up to very high-energy gamma rays. Spatial origin of gamma-ray radiation from these sources cannot be fathom due to the poor angular resolution of the detectors. We propose to investigate gravitationally lensed blazars. Cosmic lenses magnify the emission and produce time...

345. TeV frontier in particle astrophysics

Hitoshi Murayama (University of California Berkeley (US))

11/08/2017, 09:00

Oral

TBD

200. Gamma-Ray and Radio Emission from Star-Forming Galaxies

todd thompson

11/08/2017, 09:30

Oral

I will review the physics of the far-infrared--radio correlation of star-forming galaxies and its implications for the GeV and TeV gamma-ray emission from normal galaxies, dense starbursts, and ultra-luminous galaxies. I will connect with predictions for the extra-galactic diffuse gamma-ray and high-energy neutrino backgrounds, and I will discuss implications for the physics of galactic winds.

352. Follow the roars and chirps: characterizing compact object mergers with gravitational wave, electromagnetic and multi-messenger radiation

Dr Samaya Nissanke (Radboud University)

11/08/2017, 10:30

Oral

The first and second observational runs of the Advanced LIGO and Virgo detectors are seeing the first detections of gravitational waves (GWs) from binary black holes. Future observational runs by advanced gravitational-wave detectors should measure not only stellar-mass binary black hole mergers but other compact object mergers that comprise neutron stars. We expect such systems to emit...

92. Small but mighty: Dark matter substructures

Dr Francis-Yan Cyr-Racine (Harvard University)

11/08/2017, 11:00

Cosmology (incl. neutrino mass/number density)

Oral

The fundamental properties of dark matter, such as its mass, self-interaction, and coupling to other particles, can have a major impact on the evolution of cosmological density fluctuations on small length scales. Strong gravitational lenses have long been recognized as powerful tools to study the dark matter distribution on these small subgalactic scales. In this talk, we discuss how...

301. Measurements of the Local Value of the Hubble Constant

Daniel Scolnic

11/08/2017, 11:18

Oral

I will review the local measurement by the SHOES team of the current rate of expansion (H0) of the universe from HST observations of Cepheid variables in host galaxies of Type Ia Supernovae. This measurement is a significant improvement from past measurements, and reduces many systematic uncertainties in past analyses. I will discuss the tension of our measurements with the inferred value of...

202. Observations of Supernova Remnants and Pulsar Wind Nebulae with VERITAS

Amanda Weinstein (Iowa State University)

11/08/2017, 11:36

Oral

The gamma-ray emission that arises from charged particle interactions with ambient photons and interstellar material provides insight into the nature and mechanism of charged particle (cosmic ray) acceleration taking place within the phenomena left behind by the death of massive stars: i.e. supernova remnants (SNRs) and pulsar wind nebulae (PWNe). The very-high-energy (VHE) gamma-ray...

80. DAMPE and its first year in orbit

Dr Stephan Zimmer (Universite de Geneve (CH))

11/08/2017, 11:54

Cosmic rays

Oral

The DArk Matter Particle Explorer (DAMPE), is a space mission within the strategic framework of the Chinese Academy of Sciences, resulting from a collaboration of Chinese, Italian, and Swiss institutions, is a new addition to the growing number of particle detectors in space. It was successfully launched in December 2015 and has commenced nominal science operations since shortly after launch....