164,272 research outputs found
Il Museo Imperiale d'Inscrizioni nelle Osservazioni letterarie di Scipione Maffei
Si indagano i complessi rapporti testuali tra la versione di alcune epigrafi viennesi presenti nella rivista Osservazioni Letterarie di Scipione Maffei e quella riportata nel codice della Biblioteca Capitolare di Verona, CCLXVII
CO (2–1) observations of Maffei 2
Maffei 2 is a highly obscured galaxy, probably of type Sbc, at a distance of 5 Mpc (Allen and Raimond 1972; Spinrad et al. 1973). Since it lies close to the Galactic plane, there is considerable confusion in infrared and 21-cm HI observations due to Galactic emission, but investigations of its structure can be carried out at millimeter wavelengths where the Galaxy contribution is confined to a limited velocity range. The high resolution (30″) of our CO J=2–1 observations permits both a detailed examination of Maffei 2 and a study of the nature of the gas in its nucleus, through comparison with the CO J=1–0 observations
La Tragedia classica dalle origini al Maffei /
Includes bibliographies.Trissino, G. Sofonisba.--Rucellai, G. Rosmunda.--Speroni, S. Canace.--Torelli, P. Merope.--Bonarelli, P. Solimano.--De Dottori, C. Aristodemo.--Delfino, G. Cleopatra.--Martello, P. J. Alceste.--Maffei, S. Merope
[Report to Chief J. E. Curry, by an unknown author #1]
Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
[Report to Chief J. E. Curry, by an unknown author #2]
Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
The extinction and distance of Maffei 1
We have obtained low- and high-resolution
spectra of the core of the highly reddened
elliptical galaxy Maffei 1. From these data, we
have obtained the first measurement of the
Mg2 index and have measured the
velocity dispersion and radial velocity with
improved accuracy. To evaluate the extinction, a
correlation between the Mg2 index and
effective V-I color has been established for
elliptical galaxies. Using a new method for
correcting for effective wavelength shifts, the
V-I color excess reveals that the optical depth
of Galactic dust at 1 mu;m is 1.69+/-0.07.
Thus, AV=4.67+/-0.19 mag, which is
lower by 0.4 mag than previously thought. To
establish the distance, the fundamental plane for
elliptical galaxies has been constructed in I.
The velocity dispersion of Maffei 1, measured to
be 186.8+/-7.4 km s-1, in combination
with modern wide-field photometry in I, leads to
a distance of 2.92+/-0.37 Mpc. The
Dn- sigma; relation, which is
independently calibrated, gives 3.08+/-0.85 and
3.23+/-0.67 Mpc from photometry in B and K',
respectively. The weighted mean of the three
estimates is 3.01+/-0.30 Mpc, which is lower
than distances judged with reference to M32 and
the bulge of M31 from the brightest stars seen
at K'. Since the luminosity of asymptotic giant
branch stars at K' is strongly dependent on age,
the lower distance suggests that the last epoch
of star formation in Maffei 1 occurred farther
in the past than in these other systems. The
distance and luminosity make Maffei 1 the
nearest giant elliptical galaxy. In the absence
of extinction, the galaxy would be among the
brightest in the sky and would have an apparent
size 2/3 that of the full Moon. The radial
velocity of Maffei 1 is +66.4+/-5.0 km
s-1, significantly higher than the
accepted value of -10 km s-1. The
Hubble distance corresponding to the mean
velocity of Maffei 1, Maffei 2, and IC 342 is
3.5 Mpc. Thus, it is unlikely that Maffei 1 has
had any influence on Local Group dynamics
CI and CO in the nearby spiral galaxies IC 342 and Maffei 2
We present , ,
and 492 GHz [CI] maps
as well as and
measurements of the central
regions in the nearby Sc galaxies IC 342 and Maffei 2. In both galaxies,
the distribution of CO and [CI] is strongly concentrated towards the
center. These centers harbour modest starbursts. Both galaxies have
nearly identical transitional ratios
but the relative intensities of their and [CI] emission lines
differ significantly. The observed sets of line intensities require
modelling with a multi-component molecular gas. In both galaxies, a
dense component must be present ()
with kinetic temperatures K (IC 342) or K
(Maffei 2), as well as a less dense (IC 342: a few hundred at
most; Maffei 2: ) and hotter ( K) component. In both galaxies, neutral and ionized atomic
carbon amounts are between 1.5 and 2.5 times those of CO.
In both starburst centers about half to two thirds of the molecular
gas mass is associated with the hot PDR phase.
The center of IC 342 contains within kpc an (atomic and
molecular) gas mass of 1 and a peak face-on
gas mass density of about 70 pc-2. For Maffei 2 these
numbers are less clearly defined, mainly because of uncertainties
in its distance and carbon abundance. We find a gass mass , and a peak face-on gas mass
density of about 35 pc-2
Optical and Near-Infrared Observations of the Nearby Spiral Galaxy Maffei 2
Spectra, photographs, and photometric measurements have been used to show that Maffei 2 has a distance of 5 ± 2 Mpc and that it has a morphological type near Sbc II-in agreement with similar conclusions made earlier by radio observers. We discuss the possible relationships between Maffei 2 and the elliptical galaxy Maffei 1; there are serious inconsistencies in the existing data which bear on this question
Murder on the mountain: author talk with Peter J. Wosh
Author talk by Peter J. Wosh on May 5th, 2022, on his book, "Murder on the Mountain: crime, passion, and punishment in gilded age New Jersey.
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