Science2022-11-21T14:38:56+00:00

SCIENCE

Some talks, presentations, articles and papers from the project

Refereed Publications

Derezea, E., Kume, A., Froebrich, D., 2022, An application of Saddlepoint Approximation for period detection of stellar light observations, Journal of the Royal Statistical Society: Series C, in press (.pdf version)

Herbert C., Froebrich D., Scholz A., 2022, A survey for variable young stars with small telescopes: VII – Spot Properties on YSOs in IC5070, MNRAS, in press (.pdf version)

Froebrich D., Eislöffel J., Stecklum B., Herbert C., Hambsch F.-J., 2022, A survey for variable young stars with small telescopes: V – Analysis of TXOri, V505Ori, and V510Ori, the HST ULLYSES targets in the σ Ori cluster, MNRAS, 510, 2883 (.pdf version)

Froebrich D., Derezea, E., Scholz A., et al., 2021, A survey for variable young stars with small telescopes: IV – Rotation Periods of YSOs in IC5070, MNRAS, 506, 5989 (.pdf version)

Froebrich, D., Scholz, A., Eislöffel, J., Stecklum, B., 2020, A survey for variable young stars with small telescopes: III – Warm spots on the active stars V1598Cyg, MNRAS, 497, 4602 (.pdf version)

Evitts, J.J.; Froebrich, D.; Scholz, A.; et al., 2020, A survey for variable young stars with small telescopes: II – Mapping a protoplanetary disk with stable structures at 0.15 AU, MNRAS, 493, 184 (.pdf version)

Hillenbrand, L.A., Contreras Pena, C., Morrell, S., et al., 2018, Gaia 17bpi: An FU Ori Type Outburst, ApJ, 869, 146 (.pdf version or Press Release)

Froebrich, D., Campbell-White, J., Scholz, A., et al., 2018, A survey for variable young stars with small telescopes: First results from HOYS-CAPS, MNRAS, 478, 5091 (.pdf version)

Sicilia-Aguilar, A., Oprandi, A., Froebrich, D., et al., 2017, The 2014-2017 outburst of the young star ASASSN-13db: A time-resolved picture of a very low-mass star between EXors and FUors, A&A, 2017, 607, 127 (.pdf version)

HOYS Publication Guidelines

All publications using any HOYS data should reference the project description paper (Froebrich et al. 2018, MNRAS, 478, 5091) and the data calibration paper (Evitts et al. 2020, MNRAS, 493, 184). If not all contributors of data are included in the author list, then the following should be added to the acknowledgements of every publication: “We would like to thank all contributors of observational data for their efforts towards the success of the HOYS project.”

We aim to disseminate the results of the science exploitation of the HOYS data with two kinds of publications. These are: i) larger, survey description type publications and ii) smaller, more specific publications.

We plan to write type i) publications about every one to two years. On these publications every participant who contributed data should be added as a co-author (if s/he wishes so), as well as everyone involved in the data analysis.

All other, type ii) publications using any HOYS data should include everyone as a co-author who made a significant contribution to the scientific analysis of the data and the preparation of the publication. Furthermore, any contributor who made a significant contribution to the dataset analysed in the publication should be added as co-author. In other words, anyone whose data cannot be removed without significantly degrading the quality of the analysis should be made a co-author.

Science Talks / Presentations / Articles

Hunting for Eruptive Young Stellar Objects, Article on the BAA website, advertising the expansions of the project to variable star observers in the UK.

Hunting for Eruptive Young Stellar Objects, Article in the BAA VSS Circular 174 (December 2017), advertising the expansions of the project to variable star observers in the UK.

Optical brightness and colours of V2492Cyg before, during and after the recent record peak in brightness, ATel10259, 12.04.2017

Froebrich, D., Scholz, A., Campbell-White, J., Crumpton, J., D’Arcy, E., Makin, S.V., Zegmott, T., Billington, S.J., Hibbert, R., Newport, R.J., Fisher, C.R. 2018, Variability in IC5070: two young stars with deep recurring eclipses, RNAAS, 2, 61 (.pdf version)

How to form stars and clusters and how to help us understand it, Stargazing Live Talk, 03.03.2017

The Physics of Star Formation, Public talk for Crayford Manor House Astronomical Society Dartford, 03.11.2016

Photometric Monitoring of nearby young Clusters as a Citizen Science Project, Poster at Star Formation 2016 Conference in Exeter, 24.08.2016

Photometric Monitoring of nearby young Clusters as a Citizen Science Project, Talk at Star Formation 2016 Conference in Exeter, 24.08.2016

The Physics of Star Formation, Talk at Hampshire Astronomical Group Meeting on 13.05.2016

The Physics of Star Formation, Talk at SEKAS Meeting on 09.01.2016

Hunting for Eruptive Young Stellar Objects, Article in the BAA VSS Circular 164 (June 2015), advertising the project to variable star observers in the UK.

Hunting for Eruptive Young Stellar Objects, Talk given at BAA Spring Meeting in Ashford on 25.04.2015, presenting some initial results of the search for high amplitute variables in NGC 2264.

LIGHT CURVES

Database Offline

27 January 2023|

We have had to take the database offline to repair our server. Multiple of the disks in the raid system storing all the data (mostly the images) have started to [...]

Lightcurve of the week 211

25 January 2023|

This week we look at the light curve of LkHa137. This is a young star in the Pelican Nebula region. It is situated in a dark part of the molecular [...]

Lightcurve of the week 210

18 January 2023|

This week we have a look at some ongoing research -  something that will hopefully get published in the medium term future. In the past we have shown how to [...]

Lightcurve of the week 209

13 January 2023|

This week we look back at the first object posted in this feature last year. The Gaia Alert object Gaia22aai. It is situated in the Pelican Nebula (IC5070) target region, [...]

Lightcurve of the week 208

3 January 2023|

Happy New Year and Happy 4th Birthday to our light curve of the week feature! This week we finish our round of thanks to participants to the HOYS project. We [...]

Lightcurve of the week 207

28 December 2022|

This week we continue our round of thanks to participants to the HOYS project. We have a short description of the group at the Astrolab IRIS observatory in Belgium, who [...]

Lightcurve of the week 206

22 December 2022|

I have been thanking our contributors to the project many times in the past. In most cases this has been very general and 'anonymous' without mentioning any specific names. Indeed [...]

Lightcurve of the week 205

14 December 2022|

This week we look at a Gaia alert from a few years ago in the HOYS field L1641N. The object in question is Gaia19amy, or otherwise known as the variable [...]

Lightcurve of the week 204

8 December 2022|

This week we have a short outlook on some general statistical analysis we are working one. As mentioned before, we have used the latest Gaia data release to identify all [...]

Lightcurve of the week 203

1 December 2022|

This week we are looking at the light curve with probably the least amount of data points we ever had in this feature - now almost at it's 4th anniversary. [...]

Lightcurve of the week 202

24 November 2022|

This is the first time we are looking at the same star twice in two weeks, i.e. we have another more detailed look at the light curve of the variable [...]

Lightcurve of the week 201

18 November 2022|

This week we look at the light curve of the variable star V1787Ori. It is situated South of the Orion Nebula in the HOYS target field called L1641N. This is [...]

Go to Top