The SAURON integral field spectrograph was used to observe the central area of the barred spiral galaxy M100 (NGC 4321). M100 contains a nuclear ring of star formation, fueled by gas channeled inward by the galaxy's bar. We present maps of emission line strengths, absorption line strength indices, and the gas velocity dispersion across the field. The Hβ emission is strongest in the ring, along ...

We present new neutral atomic carbon [C I ] ( 3 P 1 ? 0 ) mapping observations within the inner ?7 kpc and ?4 of disks NGC 3627 4321 at a spatial resolution 190 pc 270 pc, respectively, using Atacama Large Millimeter/Submillimeter Array (ALMA) Compact (ACA). combine these with CO(2?1) data from PHANGS-ALMA, literature CO for two other starburst and/or active galactic nucleus (AGN) galaxies (NGC...

We present high-resolution, near-infrared imaging of the circumnuclear region of the barred spiral galaxy M100 (=NGC 4321), accompanied by near-infrared spectroscopy. We identify a total of 43 distinct regions in the K-band image, and determine magnitudes and colours for 41 of them. By comparison with other near-infrared maps we also derive colour excesses and K-band extinctions for the knots. ...

We present ISOCAM images (1.5 ′′ px −1) in the LW2 (6.75 µm) and LW3 (15 µm) broad band filters of the circumnuclear starburst of NGC 4321 (M 100). A detailed comparison with the emission at other wavelengths (U , B, Hα, and CO) is also presented. The nature and intensity of the mid-infrared emission is shown to be remarkably different from one star forming region to the next. For instance, sta...

Spiral arms, if they are massive, exert gravitational torques on stars that transport angular momentum radially within galactic disks. These torques depend not on the pattern speed or permanence of the arms but only on the nonaxisymmetric mass distribution. Hence the torques can be measured directly from photometry. We demonstrate this using gri CCD data for M100 (NGC 4321). Since we nd consist...

The maximally clustered permutations are characterized by avoiding the classical permutation patterns {3421, 4312, 4321}. This class contains the freely braided permutations and the fully commutative permutations. In this work, we show that the generating functions for certain fully commutative pattern classes can be transformed to give generating functions for the corresponding freely braided ...

Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, campus Isla Teja s/n, Valdivia, Chile (GD) RTL Genomics, 4321 Marsha Sharp Fwy, Door 2, Lubbock, TX 79407, USA (JDH) Department of Biological Sciences, Texas Tech University, Box 43131, Lubbock, TX 79409, USA (MRM) Poxvirus and Rabies Branch, Centers for Disease Control and Prevention, 1600 Clift...

double respiratory system consisting of book lungs and tube tracheae. The book lungs are the most important for gas exchange in many species and cope alone with the oxygen demands. The tracheae are often only poorly developed and are presumed to be of little importance in overall gas exchange (Anderson, 1970; Anderson and Prestwich, 1982; Strazny and Perry, 1984). In contrast, several species, ...

We analyze K→πνν¯ rates in a model with TeV-scale leptoquark addressing B-meson anomalies, based on the flavor non-universal 4321 gauge group featuring third-generation quark-lepton unification. show that, together tight bounds imposed by ΔF=2 amplitudes, present measurement of B(K+→π+νν¯) already provides non-trivial constraint parameter space. In minimal version model, deviations from Standar...