29 citations · 119 across the 15 of their papers we have counts for
17 papers
JWST Detects a Dusty AGB-like Source Before the Type Ia-CSM Supernova 2026sqf
Tamás Szalai, Dan Milisavljevic, Noah Zimmer +22
Supernova (SN) 2026sqf recently appeared in the nearby face-on spiral galaxy NGC 3310 and has shown signs of strong interaction with a circumstellar medium (CSM). Such intense inte…
WISDOM Project - XXVII. Giant molecular clouds of the lenticular galaxy NGC 1387: similarities with spiral galaxy clouds
Fu-Heng Liang, Martin Bureau, Lijie Liu +10
Molecular gas is crucial to understanding star formation and galaxy evolution, but the giant molecular clouds (GMCs) of early-type galaxies (ETGs) have rarely been studied. Here, w…
From Stellar Nurseries to Old Stellar Populations: A Multi-wavelength Case of NGC 1055
Selçuk Topal
Given the complex nature of galaxies' interstellar medium (ISM), multi-wavelength data are required to probe the interplay among gas, dust, and stellar populations. Spiral galaxies…
Down but not out: properties of the molecular gas in the stripped Virgo Cluster early-type galaxy NGC4526
Lisa M. Young, David S. Meier, Alison Crocker +2
We present ALMA data on the 3mm continuum emission, CO isotopologues (12CO, 13CO, C18O), and high-density molecular tracers (HCN, HCO+, HNC, HNCO, CS, CN, and CH3OH) in NGC4526. Th…
Correlations of gas, dust and young stellar populations in the spiral galaxy NGC 7331
Selçuk Topal
Molecular clouds (MCs) in galaxies are complex places with many phases. It is, therefore, essential to study the physics and kinematics of the MCs using multiple emission lines. We…
Molecular line ratio diagnostics and gas kinematics in the AGN host Seyfert galaxy NGC 5033
Selçuk Topal
Multiple molecular lines are useful for studying the physical properties of multiphase star-forming gas in different types of galaxies. We probe the molecular gas throughout the di…
An Auditability, Transparent, and Privacy-Preserving for Supply Chain Traceability Based on Blockchain
Bora Bugra Sezer, Selcuk Topal, Urfat Nuriyev
Traceability and auditability are key structures that are vital in supply chain management and construction. However, trust is the most important aspect of customers in these syste…
The Evolution of NGC 7465 as Revealed by its Molecular Gas Properties
Lisa M. Young, David S. Meier, Martin Bureau +3
We present ALMA observations of CO isotopologues and high-density molecular tracers (HCN, HCO+, CN, etc.) in NGC 7465, an unusually gas-rich early-type galaxy that acquired its col…
Multiple-line study of molecular gas in spiral galaxy NGC 2903
Selçuk Topal
Multiple molecular lines with radiative transfer modelling are a powerful tool to probe the physics of star-forming gas in galaxies. We investigate the gas properties in the centre…
Most-Intersection of Countable Sets
Ahmet Çevik, Selçuk Topal
We introduce a novel set-intersection operator called `most-intersection' based on the logical quantifier `most', via natural density of countable sets, to be used in determining t…
Natural Density and The Quantifier 'Most'
Selçuk Topal, Ahmet Çevik
This paper proposes a formalization of the class of sentences quantified by \textit{most}, which is also interpreted as {\em proportion of} or {\em majority of} depending on the do…
CO Tully-Fisher Relation of Star-forming Galaxies at z=0.05-0.3
Selcuk Topal, Martin Bureau, Alfred L. Tiley +2
The Tully-Fisher relation (TFR) is an empirical relation between galaxy luminosity and rotation velocity. We present here the first TFR of galaxies beyond the local Universe that u…
Syllogistic Logic with Cardinality Comparisons, On Infinite Sets
Lawrence S. Moss, Selçuk Topal
This paper enlarges classical syllogistic logic with assertions having to do with comparisons between the sizes of sets. So it concerns a logical system whose sentences are of the…
Molecular Gas Kinematics and Line Diagnostics in Early-type Galaxies: NGC4710 and NGC5866
Selcuk Topal, Martin Bureau, Timothy A. Davis +3
We present interferometric observations of CO lines (12CO(1-0, 2-1) and 13CO(1-0, 2-1)) and dense gas tracers (HCN(1-0), HCO+(1-0), HNC(1-0) and HNCO(4-3)) in two nearby edge-on ba…
The Tully-Fisher Relation of COLD GASS Galaxies
Alfred L. Tiley, Martin Bureau, Amélie Saintonge +3
We present the stellar mass (M_*) and Wide-Field Infrared Survey Explorer (WISE) absolute Band 1 magnitude (M_W1) Tully-Fisher relations (TFRs) of subsets of galaxies from the CO L…
Molecular Gas Properties of the Giant Molecular Cloud Complexes in the Arms and Inter-arms of the Spiral Galaxy NGC 6946
Selcuk Topal, Estelle Bayet, Martin Bureau +2
Combining observations of multiple CO lines with radiative transfer modeling is a very powerful tool to investigate the physical properties of the molecular gas in galaxies. Using…
ISM chemistry in metal rich environments: molecular tracers of metallicity
Timothy A. Davis, Estelle Bayet, Alison Crocker +2
In this paper we use observations of molecular tracers in metal rich and alpha-enhanced galaxies to study the effect of abundance changes on molecular chemistry. We selected a samp…