Models of Disk Evolution: Confrontation with Observations

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Confrontation of Double-inflationary Models with Observations

We consider double-inflationary models with two noninteracting scalar fields, a light scalar field φl with potential 1 2m 2 l φ 2 l and a heavy scalar field φh with potential λ n φh with n = 2, 4. CDM with the initial spectrum of adiabatic perturbations produced in these models is compared with observations. These models contain two more free parameters than the standard CDM model with an initi...

متن کامل

Variability in active galactic nuclei: confrontation of models with observations

The variability of active galactic nuclei (AGN) has long held the promise of shedding light on their detailed structure, and possibly other astrophysical phenonema. Different emission mechanisms lead to different patterns of variability in flux which are in principle easily distinguishable. Recent predictions for the expected spectrum of variations for various models are now in such a form that...

متن کامل

Observations of Disk Galaxy Evolution

The morphologies of disk galaxies begin to deviate systematically from those of nearby galaxies at surprisingly low redshifts, possibly as low as z = 0.3. This corresponds to a time ∼ 3.5 Gyr in the past, which is only one quarter of the present age of the Universe. Beyond z = 0.5 (a look-back time of 5 Gyr) the effects of evolution on spiral structure are rather obvious: spiral arms are less w...

متن کامل

Expected Properties of Primeval Galaxies and Confrontation with Existing Observations

1. Properties of low metallicity and PopIII starbursts – predictions and confrontation with existing observations Based on existing or new stellar tracks and appropriate non-LTE model atmospheres we have recently undertaken a systematic study of the expected restframe EUV, UV to optical properties of starbursts of zero and higher metal-licity (Schaerer 2002, 2003, hereafter S02, S03). These stu...

متن کامل

One-dimensional delayed-detonation models of Type Ia supernovae: confrontation to observations at bolometric maximum

The delayed-detonation explosion mechanism applied to a Chandrasekhar-mass white dwarf offers a very attractive model to explain the inferred characteristics of Type Ia supernovae (SNe Ia). The resulting ejecta are chemically stratified, have the same mass and roughly the same asymptotic kinetic energy, but exhibit a range in 56Ni mass. We investigate the contemporaneous photometric and spectro...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: The Astrophysical Journal

سال: 2002

ISSN: 0004-637X,1538-4357

DOI: 10.1086/341670