Astro-ph Club 2016
Time : Every Wednesday 10:30 AM
Location: The 2nd floor lounge in Leewonchul Hall
Organizer : Yun-Kyeong Sheen
| Date | Title | First author | Speaker | Keywords | arXiv link |
|---|---|---|---|---|---|
| 2016/01/20 | The fate of high-redshift massive compact galaxies | Ignacio G. de la Rosa | 김민진 | Low-z counterparts of high-z red nuggets | arXiv:1601.03920 |
| The KMOS Redshift One Spectroscopic Survey (KROSS): Dynamical properties, gas and dark matter fractions of typical z~1 star-forming galaxies | John P. Stott | 신윤경 | The KMOS survey of ~600 star-forming galaxies at z = 0.8-1.0 | arXiv:1601.03400 | |
| A polarimetirc method for measuring black hole masses in Active Galactic Nuclei | M. Yu. Piotrovich | 박대성 | polarimetry, inferring inclination angle with assumed geometry and theoretical prediction, f-factor | arXiv:1509.01028 | |
| 2016/1/27 | Spectacular tails of ionised gas in the Virgo cluster galaxy NGC 4569 | A. Boselli | 신윤경 | Long tails of diffuse ionised gas without any associated stellar component of NGC 4569 revealed by deep H_alpha+[NII] imaging. Ram pressure stripping. | arXiv:1601.04978 |
| Faint COSMOS AGN at z~3.3 - I. Black Hole Properties and Constraints on Early Black Hole Growth | Benny Trakhtenbrot | 박대성 | X-ray selected sample in COSMOS, Keck K-band spectroscopy, low-L AGNs at z~3, BH seeds, evolution of obscuration and radiative efficiency | arXiv:1512.04551 | |
| Observational evidence of a slow downfall of star formation efficiency in massive galaxies during the last 10 Gyr | Schreiber | 김민진 | quenching of massive galaxy due to the slow downfall | arXiv:1601.04226 | |
| 2016/02/03 | It's not easy being green: The evolution of galaxy colour in the EAGLE simulation | James W. Trayford | 신윤경 | Quiescently star-forming, rapidly quenching, and rejuvenateing galaxies. t_{green} = 2 Gyr. | arXiv:1601.07907 |
| Massive Relic Galaxies Challenge the Co-evolution of Super-massive Black Holes and Their Host Galaxies | Anna Ferré-Mateu | 박대성 | massive compact relic galaxies, HETMGS survey, selecting 3sigma outliers from M-M relation, SDSS imaging (→compact) spec (→old) data, no merging, no structure evolution (skip 2nd phase evolution) | arXiv:1506.02663 | |
| The Next Generation Virgo Cluster Survey. VII. The intrinsic shapes of low-luminosity galaxies in the core of the Virgo cluster, and a comparison with the Local Group | R. Sanchez-Janssen | 김민진 | intrinsic shape of low-luminosity galaxies | arXiv:1602.00012 | |
| 2016/03/09 | The Carnegie-Irvine Galaxy Survey. IV. A Method to Determine the Average Mass Ratio of Mergers That Built Massive Elliptical Galaxies | song huang | 김민진 | merger ratio of nearby elliptical galaxies | arXiv:1603.00876 |
| Selection bias in dynamically-measured super-massive black hole samples: its consequences and the quest for the most fundamental relation | F. Shankar | 김민진 | severe selection bias in BH-Galaxy relation | arXiv:1603.01276 | |
| The cosmic assembly of stellar halos in massive Early-Type Galaxies | Fernando Buitrago | 신윤경 | Hubble Ultra Deep Field imaging of the most massive 6 ETGs at z = 0.6 - 1. Ongoing mass-assembly features in the outer halos. | arXiv:1602.01846 | |
| The Hydra I cluster core I. Stellar populations in the cD galaxy NGC 3311 | C.E. Barbosa et al. | 김석 | multi-object spectroscopic mode, the different stellar populations in the inner and extended halo reflect the dominance of in situ stars in the former and the accreted origin for the large majority if the stars in the latter. | arXiv:1603.02202 | |
| 2016/03/16 | Distinguishing disks from mergers: tracing the kinematic asymmetries in local (U)LIRGs using kinemetry-based criteria | Enrica Bellocchi | 신윤경 | The kinematic characterization to distingush different galaxy evolutionary scenarios. VLT/VIMOS IFS for 38 local (z < 0.1) (U)LIRGs. | arXiv:1603.03441 |
| 2016/03/23 | Are Compton-Thick AGN the Missing Link Between Mergers and Black Hole Growth? | Dale Kocevski et al. | 박대성 | compton-thick AGNs, heavily obscured AGN, host morphology, galaxy mergers, increased fraction of disturbed morphologies with obscuration, merger-triggered obscured SMBH growth is hidden in Compton-thick population | arXiv:1509.03629 |
| Early-type galaxy star formation histories in different environments | Patrick J. Fitzpatrick | 신윤경 | Any differences in the star formation histories with environment at fixed structure are very slight. | MNRAS.447.1383 | |
| Local Analogs for High-redshift Galaxies: Resembling the Physical Conditions of the Interstellar Medium in High-redshift Galaxies | F. Blan et al. | 김민진 | search for local analogs of high-z SF galaxies using the gas properties | arXiv:1603.05275 | |
| AGN are cooler than you think: the intrinsic far-IR emission from QSOs | M. Symeonidis | 김민진 | bias for using FIR as a tracer of SFR in AGN | arXiv:1603.05278 | |
| 2016/04/06 | Galaxy Zoo: Mergers - Dynamical models of interacting galaxies | A. J. Holincheck | 신윤경 | Simulations selected by Citizen Scientists. Galaxy Zoo: Mergers | arXiv:1604.00435 |
| 2016/04/20 | A 17-billion-solar-mass black hole in a group galaxy with a diffuse core | J. Thomas et al. | 박대성 | overmassive BH (~2% of bulge mass), group environment, much less compact, faint and flat core, core E galaxies, core radius than velocity dispersion, gravitational core scouring by BH binary (grav. slingshots; 3-body motion), possible descendant of a luminous quasar, rare or common? | arXiv:1604.01400 |
| A mechanism for stimulated AGN feedback in massive galaxies | B. R. McNamara | 신윤경 | A model to explain molecular clouds apparently forming in the wakes of rising X-ray bubbles in central galaxies of clusters and groups. | arXiv:1605.04629 | |
| Fast outflows and star formation quenching in quasar host galaxies | S. Carniani | 김민진 | sign of SF at the outer part of the galaxy where the outflow is not prominent + suppressed SF at the central part | arXiv:1604.04290 | |
| 2016/05/04 | BUDHIES III: The fate of HI and the quenching of galaxies in evolving environments | Yara L. Jaffé | 김석 | environmental effect, post-processing, quenching | arXiv:1604.07832 |
| Discovery of a galaxy cluster with a violently starbursting core at z = 2.506 | Tao Wang | 신윤경 | a collapsed, single cluster-sized dark matter halo which is dominated by star forming galaxies in the core | arXiv:1604.07404 | |
| Zooming in on major mergers: dense, starbursting gas in cosmological simulations | Martin Sparre | 변우원 | Illustris zoom simulation, Major merger, Starburst | arXiv:1604.08205 | |
| Surface density effects in quenching: cause or effect? | Lilly | 김민진 | arXiv:1604.06459 | ||
| 2016/05/11 | The built-up of the red sequence in the Hercules cluster | Agulli | 김석 | glaaxies; cluster; individual A2151 | 1605.02076.pdf |
| Stellar and Black Hole Mass Densities as Empirical Tracers of Co-evolution Show Lock-step Growth since z∼3 | Jan-Torge Schindler | 박대성 | constraining BH-galaxy coevolution with independent means (focusing on integrated quantities as a population, not individuals, over a wide redshift range), QLF→BH mass density, SMF or SFRD→stellar mass density, lock-step growth up to z ~ 3, subject to many assumptions and completeness issues | arXiv:1604.05333 | |
| The spatially resolved dynamics of dusty starburst galaxies in a z ~ 0.4 cluster: beginning the transition from spirals to S0s | H. L. Johnson | 신윤경 | Rich population of recently accreted dusty starburst galaxies in a cluster at z ~ 0.4 | arXiv:1605.01058 | |
| Creating lenticular galaxies with mergers | Miguel Querejeta | 신윤경 | Major merger simulations to increase the light concentration and reduce the angular momentum | arXiv:1605.01910 | |
| Globular clusters indicate ultra diffuse galaxies are dwarfs | Beasley | 김민진 | Ultra diffuse galaxies might be failed LMC rather than failed L* galaxies | arXiv:1604.08024 | |
| 2016/05/18 | Inferences on the Relations Between Central Black Hole Mass and Total Galaxy Stellar Mass in the high-redshift Universe | Marta Volonteri | 박대성 | the low normalization of the AGN MBH-Mstar relation by Reines & Volonteri 15 can explain the current non-detection of moderate-luminosity AGNs (from X-ray stacking analysis; Chanda 4Ms CDFS) in high-z universe | arXiv:1602.05711 |
| Using deep images and simulations to trace collisional debris around massive galaxies | Pierre-Alain Duc | 신윤경 | Conference Proceedings. MATLAS preliminary results on the fraction of disturbed galaxies | arXiv:1604.08364 | |
| Hubble Space Telescope Observations of Accretion-Induced Star Formation in the Tadpole Galaxy Kiso 5639 | D. Elmegreen | 김민진 | sign of cold accretion in tadpole galaxies | arXiv:1605.02822 | |
| 2016/05/25 | A 'Universal' density profile for the outer stellar halos of galaxies | Rhea-Silvia Remus | 신윤경 | The Einasto profile with the Milky Way and Andromeda | arXiv:1605.06511 |
| 2016/6/1 | Gravitational torque-driven black hole growth and feedback in cosmological simulations | Daniel Anglés-Alcázar | 박대성 | a common gas supply (feeding BH) regulated by gravitational torques, as an alternative to AGN feedback, is the primary driver of the observed BH-galaxy co-evolution | arXiv:1603.08007 |
| Suppressing star formation in quiescent galaxies with supermassive black hole winds | E. Cheung | 김민진 | AGN feedback by low luminosity AGN might be quite common (and working effectively) in relatively massive galaxies | arXiv:1605.07626 | |
| The extended optical disk of M101 | Mihos et al. | 변우원 | Deep, wide-field imaging of M101, the structure & stellar populations of M101's outer disk. | arXiv:1211.3095 | |
| 2016/6/15 | Size growth of red-sequence early-type galaxies in clusters in the last 10 Gyr | S. Andreon | 신윤경 | 14 galaxy clusters from z = 0.023 to z = 1.803 with ACS and WFC3 | arXiv:1606.03996 |
| Active galactic nuclei flicker: an observational estimate of the duration of black hole growth phases of ~$10^5$ years | Kevin Schawinski | 박대성 | the duration of an individual AGN phase (lifetime) is observationally constrained to be ~$10^5$ yr (short compared to the total BH growth time, ~$10^7$-$10^9$ yr), which implies that BHs grow via many such short accretion bursts (AGN flickering ~$100$-$10^4$ times). | arXiv:1505.06733 | |
| Cold, clumpy accretion onto an active supermassive black hole | Grant R. Tremblay | 김민진 | Cold, clumpy accretion onto an active supermassive black hole | ||
| Stellar populations in the outer halo of the massive elliptical M49 | J. C. Mihos | 변우원 | Deep, wide-field imaging of M49, extended but extremely metal-poor outer halo | arXiv:1301.4989 | |
| 2016/6/22 | A close look at secular evolution: Boxy/peanut bulges reduce gas inflow to the central kiloparsec | F. Fragkoudi | 김민진 | p/b bulges can reduce the gas inflow rate | arXiv:1606.04540 |
| Spectroscopic Identification of Type 2 Quasars at Z < 1 in SDSS-III/BOSS | S. Yuan | 김민진 | newly discovered type 2 QSOs using BOSS | arXiv:1606.04976 | |
| 2016/7/13 | Dark influences III. Structural characterization of minor mergers of dwarf galaxies with dark satellites | Starkenburg | 김석 | arXiv:1508.06281 | |
| GASS 3505: the prototype of HI-excess, passive galaxies | K. Geréb | 신윤경 | HI-ring and stellar streams of a bulge galaxy, multiwavelength analysis and simulations | arXiv:1607.01446 | |
| The Dragonfly Nearby Galaxies Survey. I. Substantial variation in the diffuse stellar halos around spiral galaxies | A. Merritt | 김민진 | arXiv:1606.08847 | ||
| A High Stellar Velocity Dispersion and ~100 Globular Clusters for the Ultra Diffuse Galaxy Dragonfly 44 | P. van dokkum | 김민진 | UDG 44 is likely to be a failed Milky way (or LMC) | arXiv:1606.06291 | |
| 2016/7/20 | Multi-epoch Spectroscopy of Dwarf Galaxies with AGN Signatures: Identifying Sources with Persistent Broad H-alpha Emission | V. F. Baldassare | 박대성 | to distinguish btw broad emission lines powered by accreting BHs (AGNs) or transient stellar processes (e.g., SNe) in dwarf galaxies follow-up spectroscopic observation is needed to confirm persistent broad lines, as well as narrow line ratios. single-epoch broad H$\alpha$ emission line alone should not be taken as evidence for an AGN in dwarf galaxies. | arXiv:1605.05731 |
| The Dragonfly Nearby Galaxies Survey. I. Substantial variation in the diffuse stellar halos around spiral galaxies | A. Merritt | 변우원 | wide field, deep(\mu > 31 mag arcsec-2) optical imaging, stellar mass surface density profile, mean halo mass fraction ~ 0.009 | arXiv:1606.08847 | |
| The many faces of LINER-like galaxies: a WISE view | F. Herpich | 신윤경 | W_{Halpha} versus W2-W3 of LINERs | arXiv:1607.004601 | |
| 2016/7/27 | X-ray observations of dust obscured galaxies in the Chandra Deep Field South | A. Corral | 박대성 | Heavily obscured, Compton-thick (CT; $N_{H}>10^{24}\ \rm cm^{-2}$) AGNs could be hidden in DOGs. Three objects out of a sample of 14 X-ray detected DOGs in CDF-S are classified as CT-AGNs (~20% fraction). | arXiv:1605.08189 |
| Dissecting Galaxies: Spatial and Spectral Separation of Emission Excited by Star Formation and AGN Activity | Rebecca L. Davies | 신윤경 | AGN fraction in emission lines by a new spectral decomposition method | arXiv:1607.05731 | |
| 2016/8/3 | The SAMI Galaxy Survey: the link between angular momentum and optical morphology | L. Cortese | 신윤경 | Galaxies line on a tight plane defined by their Sérsic index, stellar mass, and specific angular momentum | arXiv:1608.00291 |
| An over massive dark halo around an ultra-diffuse galaxy in the Virgo cluster | M. A. Beasley | 변우원 | Counting up the number of GCs is efficient approach to estimate the halo mass | arXiv:1602.04002 | |
| 2016/8/10 | The dark nemesis of galaxy formation: why hot haloes trigger black hole growth and bring star formation to an end | Richard G. Bower | 신윤경 | a competition between star formation-driven outflows and gas accretion on to the supermassive black hole | arXiv:1607.07445 |
| 2016/8/17 | Major mergers are not significant drivers of star formation or morphological transformation around the epoch of peak cosmic star formation | E. K. Lofthouse | 신윤경 | a small fraction of the star formations budget (~3%) is triggered by major mergers | arXiv:1608.03892 |
| Merging galaxies with tidal tails in COSMOS to z = 1 | Zhang Zheng Wen | 신윤경 | 461 merging galaxies with long tidal tails of the COSMOS field | arXiv:1608.04298 | |
| A monolithic collapse origin for the thin/thick disc structure of the S0 galaxy ESO 243-49 | S. Comerón | 변우원 | co-rotation, similar age, but different metallicity : internal origin for the thick disc of ESO 243-49 | arXiv:1608.04238 | |
| 2016/8/22 - 9/16 | Summer Break | ||||
| 2016/9/21 | Isolating the young stellar population in the outer disk of NGC 300 | T. J. Hillis | 변우원 | resolved stellar photometry, the young stellar disk is unbroken out to at least ~10.9 kpc. the disturbed HI gas disk is not accompanied by a break in the stellar disk. | arXiv:1609.02106 |
| The SAMI galaxy survey: galaxy interactions and kinematic anomalies in Abell 119 | 오슬희 | 신윤경 | Kinematic misalignments are more often found among the morphologically-disturbed galaxies | arXiv:1609.03595 | |
| 2016/10/05 | The role of mergers and halo spin in shaping galaxy morphology | Vicente Rodriguez-Gomez | 신윤경 | for various galaxy mass bins from the Illustris cosmological hydrodynamic simulation | arXiv:1609.09498 |
| 2016/10/12 | Quiescence correlates strongly with directly-measured black hole mass in central galaxies | Bryan A. Terrazas | 신윤경 | the dependence of quiescence on black hole and stellar mass | arXiv:1609.07141 |
| Improving the full spectrum fitting method: accurate convolution with Gauss-Hermite functions | Michele Cappellari | 박대성 | The pPXF software has been significantly upgraded to overcome undersampling problem, especially when $\sigma \lesssim \Delta v/2$, using a well-sampled “analytic” Fourier transform in the case of the standard Gauss-Hermite series parameterization for the LOSVD. | arXiv:1607.08538 | |
| The Halos and Environments of Nearby Galaxies (HERON) Survey(proceedings) | Micheal Rich | 변우원 | Deep imaging(~29 $mag/arcsec^2$), the halo shape relates to the bulge shape. only galaxies Mv < -21 possess 'giant' halos. | arXiv:1610.02775 | |
| NGC 1068: No change in the mid-IR torus structure despite X-ray variability | Lópes-Gonzaga | X-ray variation may not be occurred by change of accretion state, but a patchy torus | arXiv:1610.03076 | ||
| Recovering the fundamental plane of galaxies by f(R) gravity | V. Borka Jovanović | 유재원 | gravitation, modified gravity, galaxies, fundamental parameters, galaxies, luminosity function, mass function. | arXiv:1610.03336 | |
| Scalar Field Dark Matter in Clusters of Galaxies | Tula Bernal | 유재원 | dark matter, galaxy clusters, gravitation, relativity | arXiv:1609.08644 | |
| 2016/10/19 | The information content of stellar halos: Stellar population gradients and accretion histories in early-type Illustris galaxies | B. Cook | 김민진 | Halo properties (metallicity and light profile) seems to be correlated with the total amount of accreting stars rather than the merging properties. | arXiv:1610.00014 |
| The Formation of Submillimetre-Bright Galaxies from Gas Infall over a Billion Years | Desika Narayanan | 박대성 | The intense SFRs of SMGs are fuelled in part by the infall of a reservoir gas supply enabled by stellar feedback at earlier times, not through major mergers. They are not transient events, but rather natural long-lived submillimeter-luminous phases, with a lifetime of $\sim0.75$ Gyr. The end-product of the central SMGs at $z \sim 2$ is likely compact quiescent galaxy population observed at $z \sim 2$. | arXiv:1509.06377 | |
| The origin of type-I profiles in cluster lenticular: An interplay between ram pressure stripping and tidally-induced spiral migration | Adam J. Clarke | 변우원 | simulation, ram pressure stripping+radial migration can alter the disk density profile of lenticular galaxies from type-II to type-I. The model predicts a flat age profile of cluster lenticular with type-I disk. | arXiv:1610.04030 | |
| The Grism Lens-Amplified Survey from Space (GALSS). VII. The diversity of the distribution of star formation i cluster and field galaxies at 0.3 < z < 0.7 | Benedetta Vulcani | 신윤경 | Halpha morphology of galaxies in 10 clusters at 0.3 < z < 0.7 | arXiv:1610.04621 | |
| 2016/10/26 | Lya and UV sizes of green pea galaxies | Huan Yang | 신윤경 | Spatial profiles of Lya emission from their 2d COS spectra, and of UV continuum from both the 2D spectra and NUV images. | arXiv:1610.05767 |
| Stellar Velocity Dispersion in Mergers: The Effects of Dust and Star Formation | Nathaniel R. Stickley | 박대성 | The distribution of dust with respect to the distribution of young stars is important on measurements of stellar velocity dispersion in mergers of disk galaxies. Dust preferentially obscures (dynamically cool) young star lights, leading to increase of flux-weighted $\sigma_*$ compared to mass-weighted $\sigma_*$. If there is no dust attenuation, flux-weighted $\sigma_*$ tends to be smaller than that of mass-weighted due to higher mass-to-light ratios of young stellar populations (i.e., more weights toward dynamically cooler young stars). | arXiv:1610.02601 | |
| 2016/11/02 | Ultra diffuse galaxies outside clusters: clues to their formation and evolution | Román&Trujillo | 변우원 | Scenario: UDGs are old, extended, low surface brightness dwarfs($M\sim10^8M_{\odot}$) galaxies born in the field, are later on processed in groups and ultimately infall into clusters by group accretion. | arXiv:1610.08980 |
| The SAMI Galaxy Survey: Asymmetry in gas kinematics and its links to stellar mass and star formation | J. V. Bloom | 신윤경 | Kinematically disturbed galaxies, probed by Halpha emission. | arXiv:1610.02773 | |
| 2016/11/16 | The Burrell Schmidt deep Virgo survey: tidal debris, galaxy halos, and diffuse intracluster light in the Virgo cluster | J. Christopher Mihos | 신윤경 | Virgo's diffuse intracluster light (ICL) and a full appendix on observations and data reduction | arXiv:1611.04435 |
| 2016/11/23 | Diverse Stellar Haloes in Nearby Milky Way-Mass Disc galaxies | Benjamin Harmsen | 변우원 | GHOSTS survey. Diversity of stellar halo masses, power law slopes, and axis ratio. Strong correlation between the stellar halo metallicities and the stellar halo masses. Good agreement between observations and accretion-only models | arXiv:1611.05448 |
| AGN feedback and the origin of the alpha enhancement in early type galaxies - insights from the GAEA model | Gabriella De Lucia | 신윤경 | The correlation between [a/Fe] and galaxy stellar mass with Galaxy Evolution and Assembly (GAEA) model | arXiv:1611.04597 | |
| 2016/11/30 | The red sequence at birth in the galaxy cluster CL J1449+0856 at z = 2 | V. Strazzullo | 신윤경 | HST/WFC3 imaging, one of the few bona-fide established clusters discovered at z =2, early red sequence in the core | arXiv:1611.07976 |
| 2016/12/07 | ALMA observations show major mergers among the host galaxies of fast-growing, high-redshift supermassive black holes | B. Trakhtenbrot | 변우원 | Demonstrations of the diversity of host galaxy properties and gas accretion mechanisms!!! | arXiv:1612.00010 |
| Observational diagnostics of gas flows: insights from cosmological simulations | Claude-Andre Faucher-Giguere | 신윤경 | Invited review to appear in Gas Accretion onto Galaxies | arXiv:1612.00448 | |
| 2016/12/21 | A deconvolution technique to correct deep images of galaxies from instrumental scattered light | E. Karabal | 신윤경 | remove prominent ghost halos of galaxies | arXiv:1612.05122 |
| iPTF Discovery of the Rapid “Turn On” of a Luminous Quasar | S. Gezari | 박대성 | the rapid turn on of a quasar: LINER –(after 12 yrs)→ Type 1 quasar. iPTF 16bco was discovered by iPTF survey (~0.5 mag rise over ~1 month timescale) and flagged as nuclear transient. follow-up spectroscopy (P60, Keck, DCT) shows dramatic appearance of broad Balmer lines and a PL continuum. pre-event opt/UV/X-ray imaging data indicate that quasar continuum increased by a factor of >10 on a timescale of <1 yr in the quasar rest-frame. the mechanism for driving this change of state is likely due to intrinsic change in the accretion rate of accretion disk (e.g., disk instability). | arXiv:1612.04830 |