Publications by Michele Cappellari


A low upper-mass limit for the central black hole in the late-type galaxy NGC 4414

Astronomy & Astrophysics EDP Sciences 597 (2016) A18

S Thater, D Krajnovic, MA Bourne, M Cappellari, T de Zeeuw, E Emsellem, J Magorrian, RM McDermid, M Sarzi, G van de Ven

We present our mass estimate of the central black hole in the isolated spiral galaxy NGC 4414. Using natural guide star adaptive optics assisted observations with the Gemini Near-Infrared Integral Field Spectrometer (NIFS) and the natural seeing Gemini MultiObject Spectrographs-North (GMOS), we derived two-dimensional stellar kinematic maps of NGC 4414 covering the central 1.5 arcsec and 10 arcsec, respectively, at a NIFS spatial resolution of 0.13 arcsec. The kinematic maps reveal a regular rotation pattern and a central velocity dispersion dip down to around 105 km/s. We constructed dynamical models using two different methods: Jeans anisotropic dynamical modeling and axisymmetric Schwarzschild modeling. Both modeling methods give consistent results, but we cannot constrain the lower mass limit and only measure an upper limit for the black hole mass of MBH = 1.56 × 106 M (at 3σ level) which is at least 1σ below the recent MBH − σe relations. Further tests with dark matter, mass-to-light ratio variation and different light models confirm that our results are not dominated by uncertainties. The derived upper mass limit is not only below the MBH − σe relation, but is also five times lower than the lower limit black hole mass anticipated from the resolution limit of the sphere of influence. This proves that via high quality integral field data we are now able to push black hole measurements down to at least five times less than the resolution limit.


The stellar structure of early-type galaxies: a wide-field Mitchell Spectrograph view

FORMATION AND EVOLUTION OF GALAXY OUTSKIRTS 11 (2016) 288-288

NF Boardman, A Weijmans, RCE van den Bosch, L Zhu, A Yildirim, G van de Ven, M Cappellari, PT de Zeeuw, E Emsellem, D Krajnovic, T Naab


THE STRUCTURE OF NUCLEAR STAR CLUSTERS IN NEARBY LATE-TYPE SPIRAL GALAXIES FROM HUBBLE SPACE TELESCOPE WIDE FIELD CAMERA 3 IMAGING

ASTRONOMICAL JOURNAL 149 (2015) ARTN 170

DJ Carson, AJ Barth, AC Seth, M den Brok, M Cappellari, JE Greene, LC Ho, N Neumayer


Passive galaxies as tracers of cluster environments at z similar to 2

ASTRONOMY & ASTROPHYSICS 576 (2015) ARTN L6

V Strazzullo, E Daddi, R Gobat, B Garilli, M Mignoli, F Valentino, M Onodera, A Renzini, A Cimatti, A Finoguenov, N Arimoto, M Cappellari, CM Carollo, C Feruglio, E Le Floc'h, SJ Lilly, D Maccagni, HJ McCracken, M Moresco, L Pozzetti, G Zamorani


Dynamical mass determinations and scaling relations of early-type galaxies

Proceedings of the International Astronomical Union Cambridge University Press 10 (2015) 20-30

M Cappellari

I review our understanding of classic dynamical scaling relations, relating luminosity, size and kinematics of early-type galaxies. Using unbiased determinations of galaxy mass profiles from stellar dynamical models, a simple picture has emerged in which scaling relations are driven by virial equilibrium, accompanied by a trend in the stellar mass-to-light ratio (M/L). This picture confirms the earliest insights. The trend is mainly due to the combined variation of age, metallicity and the stellar initial mass function (IMF). The systematic variations best correlate with the galaxy velocity dispersion, which traces the bulge mass fraction. This indicates a link between bulge growth and quenching of star formation. Dark matter is unimportant within the half-light radius, where the total mass profile is close to isothermal ($\rho\propto r^{-2}$).


General spherical anisotropic Jeans models of stellar kinematics: including proper motions and radial velocities

(2015)

M Cappellari

Cappellari (2008) presented a flexible and efficient method to model the stellar kinematics of anisotropic axisymmetric and spherical stellar systems. The spherical formalism could be used to model the line-of-sight velocity second moments allowing for essentially arbitrary radial variations in the anisotropy and general luminous and total density profiles. Here we generalize the spherical formalism by providing the expressions for all three components of the projected second moments, including the two proper motion components. A reference implementation is now included in the public JAM package available at http://purl.org/cappellari/software.


Small scatter and nearly isothermal mass profiles to four half-light radii from two-dimensional stellar dynamics of early-type galaxies

Astrophysical Journal Letters American Astronomical Society 804 (2015)

M Cappellari, AJ Romanowsky, JP Brodie, DA Forbes, J Strader, C Foster, SS Kartha, N Pastorello, V Pota, LR Spitler, C Usher, JA Arnold

We study the total mass-density profile for a sample of 14 fast-rotator early-type galaxies (stellar masses ). We combine observations from the SLUGGS and ATLAS surveys to map out the stellar kinematics in two dimensions, out to a median radius for the sample of four half-light radii Re (or 10 kpc) and a maximum radius of 2.0-6.2 Re (or 4-21 kpc). We use axisymmetric dynamical models based on the Jeans equations, which allow for a spatially varying anisotropy; employ quite general profiles for the dark halos; and, in particular, do not place any restrictions on the profile slope. This is made possible by the availability of spatially extended two-dimensional kinematics. We find that our relatively simple models provide a remarkably good description of the observed kinematics. The resulting total density profiles are well described by a nearly isothermal power law from Re/10 to at least 4Re, the largest average deviation being 11%. The average logarithmic slope is with observed rms scatter of just . This scatter out to large radii, where dark matter dominates, is as small as previously reported by lensing studies around r ≈ Re/2, where the stars dominate. Our bulge-halo conspiracy places much tighter constraints on galaxy formation models. It illustrates the power of two-dimensional stellar kinematics observations at large radii. It is now important to test the generality of our results for different galaxy types and larger samples.


Observed trend in the star formation history and the dark matter fraction of galaxies at redshift z approximate to 0.8

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 454 (2015) 1332-1357

S Shetty, M Cappellari


P-MaNGA: full spectral fitting and stellar population maps from prototype observations

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 449 (2015) 328-360

DM Wilkinson, C Maraston, D Thomas, L Coccato, R Tojeiro, M Cappellari, F Belfiore, M Bershady, M Blanton, K Bundy, S Cales, B Cherinka, N Drory, E Emsellem, H Fu, D Law, C Li, R Maiolino, K Masters, C Tremonti, D Wake, E Wang, A-M Weijmans, T Xiao, R Yan, K Zhang, D Bizyaev, J Brinkmann, K Kinemuchi, E Malanushenko, V Malanushenko, D Oravetz, K Pan, A Simmons


The ATLAS(3D) Project - XXX. Star formation histories and stellar population scaling relations of early-type galaxies

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 448 (2015) 3484-3513

RM McDermid, K Alatalo, L Blitz, F Bournaud, M Bureau, M Cappellari, AF Crocker, RL Davies, TA Davis, PT de Zeeuw, P-A Duc, E Emsellem, S Khochfar, D Krajnovic, H Kuntschner, R Morganti, T Naab, T Oosterloo, M Sarzi, N Scott, P Serra, A-M Weijmans, LM Young


OVERVIEW OF THE SDSS-IV MaNGA SURVEY: MAPPING NEARBY GALAXIES AT APACHE POINT OBSERVATORY

ASTROPHYSICAL JOURNAL 798 (2015) ARTN 7

K Bundy, MA Bershady, DR Law, R Yan, N Drory, N MacDonald, DA Wake, B Cherinka, JR Sanchez-Gallego, A-M Weijmans, D Thomas, C Tremonti, K Masters, L Coccato, AM Diamond-Stanic, A Aragon-Salamanca, V Avila-Reese, C Badenes, J Falcon-Barroso, F Belfiore, D Bizyaev, GA Blanc, J Bland-Hawthorn, MR Blanton, JR Brownstein, N Byler, M Cappellari, C Conroy, AA Dutton, E Emsellem, J Etherington, PM Frinchaboy, H Fu, JE Gunn, P Harding, EJ Johnston, G Kauffmann, K Kinemuchi, MA Klaene, JH Knapen, A Leauthaud, C Li, L Lin, R Maiolino, V Malanushenko, E Malanushenko, S Mao, C Maraston, RM McDermid, MR Merrifield, RC Nichol, D Oravetz, K Pan, JK Parejko, SF Sanchez, D Schlegel, A Simmons, O Steele, M Steinmetz, K Thanjavur, BA Thompson, JL Tinker, RCE van den Bosch, KB Westfall, D Wilkinson, S Wright, T Xiao, K Zhang


GIANT MOLECULAR CLOUDS IN THE EARLY-TYPE GALAXY NGC 4526

ASTROPHYSICAL JOURNAL 803 (2015) ARTN 16

D Utomo, L Blitz, T Davis, E Rosolowsky, M Bureau, M Cappellari, M Sarzi


The stellar initial mass function of early-type galaxies from low to high stellar velocity dispersion: homogeneous analysis of ATLAS(3D) and Sloan Lens ACS galaxies

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 446 (2015) 493-509

S Posacki, M Cappellari, T Treu, S Pellegrini, L Ciotti


The ATLAS(3D) project - XXIX. The new look of early-type galaxies and surrounding fields disclosed by extremely deep optical images

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 446 (2015) 120-143

P-A Duc, J-C Cuillandre, E Karabal, M Cappellari, K Alatalo, L Blitz, F Bournaud, M Bureau, AF Crocker, RL Davies, TA Davis, PT de Zeeuw, E Emsellem, S Khochfar, D Krajnovic, H Kuntschner, RM McDermid, L Michel-Dansac, R Morganti, T Naab, T Oosterloo, S Paudel, M Sarzi, N Scott, P Serra, A-M Weijmans, LM Young


MEASURING THE MASS OF THE CENTRAL BLACK HOLE IN THE BULGELESS GALAXY NGC 4395 FROM GAS DYNAMICAL MODELING

ASTROPHYSICAL JOURNAL 809 (2015) ARTN 101

M den Brok, AC Seth, AJ Barth, DJ Carson, N Neumayer, M Cappellari, VP Debattista, LC Ho, CE Hood, RM McDermid


THE AGES, METALLICITIES, AND ELEMENT ABUNDANCE RATIOS OF MASSIVE QUENCHED GALAXIES AT z similar or equal to 1.6

ASTROPHYSICAL JOURNAL 808 (2015) ARTN 161

M Onodera, CM Carollo, A Renzini, M Cappellari, C Mancini, N Arimoto, E Daddi, R Gobat, V Strazzullo, S Tacchella, Y Yamada


The HI Tully-Fisher relation of early-type galaxies

ASTRONOMY & ASTROPHYSICS 581 (2015) ARTN A98

M den Heijer, TA Oosterloo, P Serra, GIG Jozsa, J Kerp, R Morganti, M Cappellari, TA Davis, P-A Duc, E Emsellem, D Krajnovic, RM McDermid, T Naab, A-M Weijmans, PT de Zeeuw


The benchmark black hole in NGC 4258: dynamical models from high-resolution two-dimensional stellar kinematics

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 450 (2015) 128-144

DA Drehmer, T Storchi-Bergmann, F Ferrari, M Cappellari, RA Riffel


Initial Mass Function for Massive Galaxies at z similar to 1

GALAXY MASSES AS CONSTRAINTS OF FORMATION MODELS 10 (2015) 136-139

S Shetty, M Cappellari


The KMOS Galaxy Clusters Project

GALAXY MASSES AS CONSTRAINTS OF FORMATION MODELS 10 (2015) 110-115

RL Davies, A Beifiori, R Bender, M Cappellari, J Chan, R Houghton, T Mendel, R Saglia, R Sharples, J Stott, R Smith, D Wilman

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